Off the Isle Of Man in the Irish Sea, there is a new underwater snorkelling trail off the southwest coast. The snorkelling trail covers eight sites including Castletown, Gansey Point, Port St Mary, Fleshwick Bay, Niarbyl, Port Soderick, Port Erin and Port Grenaugh. At each of the sites, there is an information board (80cm x 120cm).
When snorkeling the Isle Of Man, keep in mind that the tidal range around the Isle of Man can be up to 8 metres. Also, the cooler water may necessitate usage of a thin wetsuit.
Overall, Isle Of Man is the 3rd most popular snorkel dive spot of all 4 snorkeling dives in UK.