Underwater Pumpkin Carving Bring your pre-gutted pumpkin and join us for some Halloween fun. You may win a dive computer! Rules are simple, you can pre-draw on your pumpkin, all carving must be completed underwater with a dive knife at least 3/4" wide by 4" long (we will have knives available if you don't have one), add-ons can be put on pumpkin... Click here to see in details