I thought I'd mention a non diving issue taht you may wish to avoid.
You may receive a card through your door from PDS (Parcel Delivery Dervice) telling you they have been unable to deliver a parcel and asking you to ring 0906 6611911, a premium rate number. DO NOT RING them as this is a mail scam originating from Belize.
If you make the call and get through to a recorded message you will already be billed for £15.
Instead contact the Trading Standards Service at www.icstis.org.uk and give them the details.