Will be going on a small boat for x5 days with the opportunity for lots of swimming and some snorkelling.
Masks and snorkels are provided but not fins.
Question is whether I need the fins or not having them will make a difference.
I can buy them from Decathlon quite cheaply - so money isn't the issue as such. It's just that I'm travelling lightly, hand luggage only, and fins will take up precious space.