Wednesday 2 August 2006, 8pm BBC One
From rock pools in Devon to deep sea corals off Scotland, Kate Humble examines the effects of fishing, pollution and climate change on UK marine life and looks at how we can help protect it.
Find out more and get involved
Adopt-a-Beach and Beachwatch
In the programme, Kate joins a beach clean initiative in Goodrington. Find out how you can help with these initiatives and clean up a beach near you.
If you are a qualified sports diver you can take part in Seasearch and help map the UK's coastal marine life.
Recording marine life
Take part in a UK-wide rock pooling survey organised by The Marine Life Information Network for Britain and Ireland.
Marine turtles Find out more about these fantastic and ancient creatures and why confusing a plastic bag for a jellyfish can prove fatal.
Safety on the shore
Beachcombing and rockpooling is great fun, but stay safe. The seashore can be a dangerous place with hard rocks and changing tides. Show respect for seashore creatures too - don't disturb seals and seabirds, leave only footprints (not litter) and take home only photographs (not living creatures!).
Also on Science & Nature
Go wider and deeper into the extraordinary life of the oceans
Elsewhere on bbc.co.uk
Discover the coastal heritage near where you live with an MP3 audio guide