
About this season
Meet the team of dive engineers on England's south coast as they battle time and tide to keep Britain’s coastlines and waterways moving.
Episodes (8)

1. Tilting Jetty
Aired 27 February 2023 • 29 min
Brighton Marina's main jetty is on the tilt, causing chaos for residents and shop owners. The Coastal Defenders team of diving engineers devise a cunning plan to fix the jetty in record time.

2. Tugboat Tyre
Aired 28 February 2023 • 29 min
In Britain's biggest port, cargo grinds to a halt as a tugboat picks up a mystery object in its propeller. The Coastal Defenders dive team use everything at their disposal to try and free it.

3. Ship's Survey
Aired 1 March 2023 • 29 min
The Coastal Defenders dive team face a long cold swim to inspect a vast oil tanker and respond to an emergency callout to repair a vital piece of equipment on a cargo ferry.

4. Sun and Storms
Aired 6 March 2023 • 29 min
It’s a taste of the luxury life for the Coastal Defenders dive team as they fix the hull of a floating hotel.

5. Save the Dolphins
Aired 7 March 2023 • 29 min
A mooring structure called a dolphin has brought the Isle of Wight ferries to a standstill. The whole ferry terminal must move to allow the Coastal Defenders dive team to repair the seaworn structure.

6. Mussels Mayhem
Aired 8 March 2023 • 29 min
It’s man versus mussel as the Coastal Defenders dive team clear shellfish from blocking a ship’s pipes.

7. Ferry Emergency
Aired 9 March 2023 • 29 min
It’s another emergency for the Coastal Defenders dive team when a ferry service ends up stranded.

8. Operation Abandoned Boats
Aired 10 March 2023 • 29 min
The Coastal Defenders team face a graveyard of discarded boats which have to be cleared to protect the waterways.