Courtmacsherry Bay is a substantial coastal bay on the West Cork coast, bounded by the Old Head of Kinsale to the east and Seven Heads to the west. The bay is a marine environment with a tidal estuary at its northwestern end, formed by the Argideen River. The primary access point for paddlers is Courtmacsherry Harbour, located in the village of Courtmacsherry on the bay's southern shore. The harbour features a pier, a slipway, and a visitor pontoon, providing concrete launch and take-out facilities. The bay is having sheltered waters, making it suitable for watersports, though it is an open coastal feature exposed to the prevailing winds and swell from the Atlantic. Paddlers undertaking open crossings of the bay, such as from the Old Head of Kinsale, should be prepared for potentially lumpy and confused seas, especially around headlands and in wind-over-tide conditions. Tidal currents are a significant factor, particularly near the estuary entrance where a bar exists and a narrow, marked channel leads to the village. The tidal flow can be strong, and vessels with significant draft must time their entry. The bay is an active boating area, supporting commercial fishing vessels, a lifeboat station, and the Courtmacsherry Harbour Boat Club, whose members engage in sailing and motorboating. Paddlers must remain aware of this traffic, especially within the marked channel leading to the harbour.

Notable features for paddlers include sea caves hidden beneath the cliffs around the bay's headlands, which are explored on guided kayak tours. The coastline offers sandy coves such as Broadstrand Bay and Coolmain Bay. The area has historical significance, with landmarks like the remains of a Coastguard Station on the hill behind the village. The bay is designated as a Special Protection Area, indicating important wildlife habitats. The maritime climate suggests cooler conditions, and paddlers should be prepared with appropriate gear. Facilities in Courtmacsherry village are limited but include the Pier House Bar. The overall paddling experience is characterized by scenic coastal exploration with a mix of open water, cliff-lined shores, and a working harbour atmosphere.