Perranporth, Cornwall Sea Change - Animated GIFs revealing the power of tides Ryan Nance October 30, 2016 Michael Marten’s series Sea Change at michaelmarten.com shows the same locations at different tide-times. Amazing. Crosby, Liverpool Worms Head, Glamorgan Salmon fishery, Solway Firth Blackpool, Lancashire Cuckmere Haven, Sussex via Visual News