Wherever you go diving you need to have proof of diving experience. Without it you could be left behind on more experienced dives even though you are qualified to make them. Make sure you log all your dives and carry your log book when on a diving vacation. The standard PADI blue paper backed logbook includes a training record in front. This Log Book is one to carry even when you have completely filled it up. The Blue Logbook is proof that you are qualified to make those adventure dives.