Hello Jenny and welcome to YD. There are thousands of good dive sites around the UK and hundreds of us who dive them regularly! You'll have no touble finding sites to suit you. 
__________________ "I feel unusual.." Withnail and I "A lot of people attack the sea. I make love to it." Jaques Yves Cousteau "The sea once it casts its spell, holds one in its net of wonder forever." Jaques Yves Cousteau |