What's Best UK War Artifacts Best Seen From Sea?

Question

Would prefer concrete structures but marine wreckage is an option if swimming can be avoided.

Answer 1

There is a broken Mulberry Harbour off Hayling Island.

Off Malta there is an Insect class gunboat.

Hope this helps.

Answer 2

There are plenty of old sea forts especially around the Thames estuary and around the Solent which you can see from the sea and some you can visit and one I believe is now a hotel.

Answer 3

ever heard of Seeland?