Milford-on-Sea
From SUWS-wiki
Milford-on-Sea is a large village, 20-25 miles south-west of Southampton and is a good place for doing Amateur Radio communications. Recommendation is to only go there in good weather.
IARU square is IO90ER
It has co-ordinates 50.723634N; 1.599197WThe "_geo" type of this property is invalid