We are staying near to St David's Pembrokeshire with friends in August. Booked last year and excited as never been before. We have kids aged 10-13. Keen on surfing etc (have own kit etc), bike riding and so on. Any recommendations of bike routes, kayak tours or cafes and pubs that are open. Also thinking will we need 'plan b' if beaches are busy? White sands is where we thought to surf as close by but any other ideas on smaller ones if too busy? Thanks in advance