Just got back!
Thanks aeshna5, I don't even know which part I did. There were two car parks on either side of the road and If only one had a RSPB visitor centre, I went in that one
I think I only did 1/2 of it anyway, but still managed to sight a Purple Heron, It was really far away though
Highlights of the day were
2 Marsh Harriers
Sedge Warbler
2 Hobbys
2 Terns Fishing
Purple Heron
And loads of Whitethroats
It was a great day. Now I really want to go explore the rest of it

Will Upload photos soon,
Connor
EDIT: Didn't even see an observatory