Back up to: Blue Planet UK
5/5 Looking at the lesser-known British coral reefs.
4/5 Steve finds out how washing our clothes is harming our marine life.
3/5 Looking at how bad fatbergs are for the arteries of our seas.
2/5 Chris meets a retired couple adding to shark science.
1/5 Steve reveals how ocean plastic rubbish is turned into kayaks that clean up our seas.