East coast wise you could look at places like Elie/Kilconquhar/St. Monans/Crail/Anstruther/Pittenweem/St. Andrews. Lots to do with kids as there water sports centre in Elie, good beaches, tennis courts, golf etc. Wet weather plans sea life centre in St. Andrews, swimming baths, strawberry picking (outdoor/indoor poly tunnel type). If you need more info let me know.