Detailed free-diving logbook for up to 100 dives. For everyone who loves this sport. Keep track of every detail: date, time in, time out, location, tide, air and water temperature, moon phase, weather, equipment, companions... 100 pages, high-quality paper. - Dimensions: 6" x 9" (15 cm x 22 cm) - Softcover, matte finish. Images from covers designed by WakeAwake.