I've booked for us (2 adults, 6yr old DS, 4yr old DD) to go to Bognor (in our own caravan) this whit for 7 days. Thought it would give us good access to Brighton and Portsmouth. Other than Butlins, what can you recommend in/around the area? We're National Trust members so will prob be going to Petworth and Uppark on rainy days, plus intend to go to Historic Dockyards in Portsmouth. Other free/cheap days out would be good. Thanks.