Cemlyn is the place to visit now, better than oakwoods as the bluebells are over and the pied flycatchers have fledged and left the area (the Springwatch ones that died were late broods, the ones in the main nesting period did much better).
Visit Cemlyn to see Sandwich terns flying low over your head to feed their chicks a few yards away, each adult with one sandeel, sprat or young cod in its beak. 1600 pairs make a grand spectacle and it's the only colony in Wales! The NWWT wardens will point out the less numerous common and arctic terns, also the pair of Mediterranean gulls whose eggs have now hatched.
Go any day, or join one of the guided walks (Tuesday & Sunday 2pm up to the end of July).
No charge for visiting or for the walks, but a donation in the NWWT box would be welcome.
Directions are on the NWWT website. The easiest is the A55 route, turn off for Valley (NOT the RAF camp) and at the traffic lights in Valley turn right onto the A5025. After 9 miles, turn left (signed to Jam Factory & Cemlyn). Pass the Jam place, 1km further on keep left until you see the lagoon, then right for the car park.
I'd hoped to include Huw's UTube clip of film from 2010 but he'll have to add that.