Is that SIR Trevor of Nottingham,?
If you are looking for the best value boat trip, ( in my ever so humble opinion ), you will never do better than to book with "Jerry's Boat ",£10 or equivalent, Fantastic food, & a different selection of bays visited. Also included, fishing rods, bait, fins, snorkels. Go on, you owe it to yourselves!!!!
By the way, this is a smaller boat, so best to organise a private party, tho' not mandatory.
Gordon.