So a cone doesn't just mean 'sailing instructor on board' in Chichester, Peter?
For the trailering classes, there's a huge first class launching area at Ichenor with a fresh water washdown hose (and scrubbing posts for keelboats). I've notice interesting trailering situations developing there at other than slack water (fast tide), and it attracts queues of RIBs in the summer. There's now a cafe at Itchenor that does great coffee in comfort, a little out of the way at the old Southerly boartyard - follow the footpath towards East Head from Haines boatyard (near the foot ferry jetty), you'll walk onto the Southerly slip in 150 yards, the cafe is on the left, behind a bunch of laid up Southerlies conveniently placed to drool at.