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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 13h

The Cliffs of Moher - with O'Brien's tower, An Branán mór (the seastack) and Goat Island all in view. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 14h

A Septarian nodule still partially embedded in the surrounding sandstone. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 03/10/2026

Listening to the wavelets and shingle mingling, in a sheltered spot on the Antrim coast. County Antrim, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 03/10/2026

The faint outline of a fossilized Goniatite shell - a ghostly trace of a small life, that ended on a sea floor over 300 million years ago. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 03/10/2026

Porcelain mushrooms (Oudemansiella mucida) sprouting from a decaying tree branch. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 02/10/2026

Fiadh, levitating with delight during a beach walk 🤣 County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 02/10/2026

The Cliffs of Moher. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 02/10/2026

The Cliffs of Moher. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 02/10/2026

Taking shelter in the woods during a heavy downpour and Spotted this Red squirrel (Sciurus vulgaris) keeping a close eye on me. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 01/10/2026

A dessicated Goose Barnacle (Lepas anatifera) growing on a piece of lost/discarded fishing gear. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 30/09/2026

Late September showers aren't all bad 😍 A double Rainbow 🌈 arcing over O'Brien's tower at the Cliffs of Moher. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 30/09/2026

A look from a different angle at one of the Goniatite fossils that I find on the shoreline. Turns out that this is what those spiral shapes look like if you turn them sideways and cut through them. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 30/09/2026

Watching the waves rolling in against a spectacular piece of the North Antrim coastline. County Antrim, Ireland. Cormacscoast.com

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 28/09/2026

A Septarian nodule. Formed in sedimentary layers that make up the Cliffs of Moher over 300 million years ago, and eroded out by Atlantic waves during recent years. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 28/09/2026

My brother Niall showing Fiadh and myself around a stunning section of coastal walk on the Antrim shore. County Antrim, Ireland.

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 28/09/2026

An Branán mór - The large seastack at the Cliffs of Moher. Almost 200ft in height and home to over 5,000 nesting seabirds during the summer months - mostly Guillemots (Uria aalge) and Kittiwakes. Each summer they paint it white with their droppings and each winter, Atlantic storms wash it clean.

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 25/09/2026

A collection of votive offerings left by visitors at a holy well in the Burren, County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 25/09/2026

Common Puffball (Lycoperdon perlatum) mushrooms, freshly sprouted in a forest floor. County Down, Ireland. Cormacscoast.com

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 24/09/2026

Goniatite fossils in a natural shale tablet. The outlines of what were individual flotation chambers in the animals shell are clearly visible in the large central fossil. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 24/09/2026

An Angle shades moth (Phlogophora meticulosa) resting on a car bumper. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 23/09/2026

A female European garden spider (Araneus diadematus). County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 22/09/2026

Yellow Lichens, growing on a coastal stone wall. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 22/09/2026

A Strawberry Anemone (Actinia fragacea) with its blue stinging cells arranged in a ring around its feeding tentacles. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 21/09/2026

Cowries, possibly Trivia arctica. Two with their mantles withdrawn (completely on the upper individual and partially on the lower one)in pic1, and one with its mantle still covering its entire shell in pic2. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 21/09/2026

Limestone Hagstones - the holes in these two were most likely made by marine bivalves called Wrinkled Rock-borers (Hiatella arctica). County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 21/09/2026

Waves breaking and rebounding off the rocks at high tide. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 19/09/2026

The Cliffs of Moher. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 19/09/2026

Spider crab (Maja brachydactyla) remains, high and dry on the shore. Looks like the gulls have taken their share. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 19/09/2026

Goniatite fossils, with one nice example standing out from the rock. This long extinct cephalopod species was found in abundance in tropical waters that once covered this area. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 18/09/2026

What looks like a small piece of ivory is in fact a shore-worn herbivore tooth - possibly from a cow, horse, donkey or deer - but too worn down for me to guess. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 18/09/2026

A rockpool packed full with Common periwinkles (littorina littorea). This species is still eaten and harvested commercially and privately around Ireland. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 17/09/2026

A circular, sea-polished, septarian nodule. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 17/09/2026

A closer look at yesterday's Drinker moth caterpillar (Euthrix potatoria), suspended by water surface tension inside a blue plastic barrel. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 17/09/2026

A Turkey tail mushroom (Trametes versicolor) beginning to fancy out on a piece of decaying wood. Apparently used in medicine as an immune system booster. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 16/09/2026

Seaglass gems. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 16/09/2026

A stylish "Windfall" - a decaying branch dressed in a covering of mosses and lichens. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 16/09/2026

The Drinker moth caterpillar (Euthrix potatoria) that I fished out of Gina's water barrel. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 14/09/2026

Thongweed buttons (Himanthalia elongata) like the marine equivalent of Autumn mushrooms, growing in a lowtide rockpool. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 14/09/2026

A Crinoid hash - a chunk of material made up almost entirely of fossilized Crinoid pieces. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 14/09/2026

A sea mist as fine as steam, blows inland while a waterfall returns the borrowed moisture to the Atlantic below. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 13/09/2026

The Cliffs of Moher. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 13/09/2026

A Vulcanite bottle stopper with the remains of a Bryozoan sea mat still attached - a souvenir from time spent at sea. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 13/09/2026

A young Brown Crab and a Blenny, hoping that if they stay still they won't get noticed. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 12/09/2026

Star Ascidians (Botryllus schlosseri) - colonial tunicates. Small star shaped colonies where each "star arm" is an individual tunicate. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 12/09/2026

Sunlight, dancing through water, as it runs over sand. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 11/09/2026

A Lepidodendron fossil emerging from the layers of seaworn sandstone. A small relic from over 300 million years ago, of the huge tree-like plants that once towered over, what was then, a tropical delta landscape. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 11/09/2026

Blue-rayed limpets (Patella pellucida) feeding on kelp. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 10/09/2026

A small piece of porphyritic rhyolite studded with colourful crystalline structures. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 10/09/2026

"Used crab clothing" The underside of a cast off shell from a Pennant's swimming crab. Like most crustaceans, as they outgrow their old shells, they abandon them and grow larger new ones. County Clare, Ireland. Cormacscoast.com walking tours

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Cormac MacFhionnlaoich @cormacscoast.bsky.social · 10/09/2026

(1/2) Aill na Searrach" - "The Cliff of the Foals" is the tallest rock face along the Cliffs of Moher and stands at just over 700 feet in height.

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