Wood Warbler request

Whilst I was delivering the post in Brynhoffnant this morning a customer, who is a member of the BTO, asked if I knew of any places to see Wood Warblers as in all the time he'd lived there he'd yet to see any in the county. I mentioned a couple of places I knew of (eg Long Wood, Betws Bledrws) but they are not that near to where he lives. I was wondering if anyone knows of a reliable site a little closer to there which I could mention to him?

Fascinated to read about the Ospreys. I remember having trouble with the altruistic behavioural stage myself many years ago.