Hi,
This Lundy trip (17th, 18th, and 19th June) is on the Obsession II out of Ilfracombe ( http://www.obsessionboatcharters.co.uk/diving.htm ). It the best boat and skipper on the N. Devon coast and I know Andy Benjy well.
The plan is wrecks and reefs - moderate nitrox depths (a 32% mix will be fine) and seals, seals lots of seals (a single loaded with 21% would be good for the second dive). Ropes off at 08:30am next Friday. Gas is available after diving but I'm not sure if the local BSAC club pumps nitrox. I'm driving down on Thursday and plan to hang out in my camper on Ilfracombe pier but of course there's plenty of B&B's close by.
There are three slots available for all three days but I'm sure just single day or two days are possible.
PM me if you wish to know more. Cheers, Tim