Visually this game is beautiful - has such a nice relaxing feel to it, I love the ocean. I only knew what to do after looking at the comments - so definitely would have been great to have a prompt on the surface or UI somewhere to just remind the player of to press or even just give a break down of why we are on the ship. I found myself just exploring the deep ocean, which was really fun - but I personally wasn't sure if I was meant to do anything other than just continue going further down? Great job though, very fun!