Hi, since this started as sombody just asking for advice,as I did last year about Cornwall (and got replies without a war starting, whats changed since then?) We were based at the Lizard, and launched at Penzance, loads of room for parking next to slip for car and trailer, brilliant area, and all facilities in carpark. We also launched at Falmouth, but waited until teatime, parked the trailer in carpark next to the slipway, and car in pay and display carpark next door, locals told us did'nt need to pay for trailer, or launching, as no-body there after 1700hrs,may have been even earlier, so another good reason to leave it until then,still had plenty of time on the water, and as Mollers says, excellent area for cruising, even if the weater is naff, still use the river, although a sure there is a speed limit in force.
Had a run over to New Quay without the rib to check out launching,struggled to park the car, let alone a trailer, great place for a visit,but launching off an ever decreasing beach, with an ever increasing queue of people who can't back a trailer up, is not my idea of a holiday, great fun for all the spectators on the sea wall though!!!
Hope that helps, we had a great holiday in Cornwall, and will be back!!