SeaTrail shows the real tidal streams around Britain and Ireland and times your trip to them: when to launch, which way to go, and the tide to carry you home. Wind, waves and sea temperature included.
Coming to iPhone in 2027Paddleboard, kayak, canoe, open-water swim, windsurf, kitesurf, dinghy or motorboat, each with its own limits.
Out and back with the tide helping you home, one-way trips, and the best departure for longer passages.
Animated tidal currents from our own model of the seas around the UK and Ireland, checked against 407 real current meters.
A 7-day outlook for your spot, rated for your craft and level, with good-day alerts for the spots you save.
Save your launches, find 5,000 slipways, and share a spot or a plan with friends.
Record your trip and see how much the tide helped you, and your real speed through the water.
SeaTrail is in testing now and will launch on iPhone in 2027. It is a planning aid, not a navigation tool: always check local conditions, tell someone your plan and stay within your ability.
While you wait, try Tide Drop, our free daily puzzle on the real tide.