In reply to Bobling:
Beautiful place Littlehaven but not the best climbing wise. On the left side of the Point (looking out to sea) is solid spine of tidal rock which can provide some bouldering fun (prob need to make up eliminates).
Nearest recorded bouldering is at Newgale not tried it before and not walking distance but short drive.
If it isn't beach weather Folly farm has a small zoo, vintage fair rides and a massive indoor jungle gym type thing though at 2 and 4 kids prob too you for that.