Pleasantly knackered after two excellent days of diving. Friday's Persiania was amazing, best vis this year by a long way. Sunshine, calm seas, and a day out of the office. The wreck was so full of life of all kinds. Took full advantage of my full fill so did my first two hour dive with an hour on deco! Just think of the possibilities when I join the box brigade! Saturday's dives were great too. Dived my first submarine, UB78. They're such evil things. Amazing how intact it is and how recognisable all the features are from the bow and stern, the conning tower and the deck mounted gun. Definitely one to dive in sidemount with a shovel to excavate the sand. @jps - you were right, it's a WW1 sub UK diving really is great.