Reen Pier sits at the edge of Ireland's richest cetacean habitat. The continental shelf drops away just twelve nautical miles offshore, drawing fin whales — the second-largest animal on Earth — into feeding grounds that few European coastlines can match. Cork Whale Watch Union Hall operates from this narrow concrete jetty in Keelbeg, a hamlet of forty souls where the fishing fleet shares mooring space with research vessels. The operation was founded by marine biologists who spent a decade cataloging sightings before converting academic fieldwork into guided excursions. The crew still logs every encounter, contributing real-time data to the Irish Whale and Dolphin Group's national database. Union Hall's position at the mouth of Glandore Harbour grants immediate access to open Atlantic water. Departures clear the harbour bar within minutes, and the first dolphin pods often appear before the coastline fades. Common dolphins are present year-round, traveling in groups of twenty to two hundred individuals. Fin whales arrive in late spring and remain through autumn, their forty-tonne bodies surfacing in slow, deliberate arcs. Minke whales pass through June and July. Harbour porpoises, Risso's dolphins, and occasional humpbacks round out the cetacean roster. The skipper adjusts the route in real time, reading weather fronts and monitoring spotter reports from other vessels working the same grid. The boat is a converted fishing trawler, sixty-three feet long, with an open stern deck and a wheelhouse cabin. There are no assigned seats. Passengers move freely, following the naturalist's directions as sightings unfold. The guide carries hydrophones and deploys them when conditions allow, broadcasting whale song through deck-mounted speakers. Binoculars are provided. The commentary is taxonomic and behavioral rather than anecdotal — Latin names, feeding strategies, migration corridors, threat profiles. Tours run daily between March and October, weather permitting, with morning and afternoon slots. Each cruise lasts four hours. The Atlantic here is unpredictable; cancellations are frequent, but the operator notifies passengers the evening before when swells exceed safe limits. Cork whale watch union hall tickets include waterproof gear on loan and a pre-departure briefing on cetacean identification. The pier has no facilities beyond a small gravel car park. Union Hall village, a five-minute walk uphill, offers one pub and a seasonal café. Mobile signal is weak. The nearest fuel and provisions are in Skibbereen, twelve kilometers inland. This is not a comfort cruise — the experience trades amenity for proximity to animals in open water.