This waterproof log book is great way to track specifics of your next dive! Features include: Waterproof Can chart up to 55 dives The dive log charts include, dive number, date, depth, visibility, location, time in and out, etc Equipment list Dive map and note pages Personal and emergency contact information Traveler&';s checklist Model #BK51 Keep all of your dive information in one place with this waterproof dive log from Trident.