If you go to the Camber there is a pontoon around the corner, just beyond the pub, or climb the ladders of the wall. I am not sure if you can pick up by the slip? opposite the Wightlink car ferry terminal, or you could try Gunwharf Quays, they may let you moor up their for a couple of minutes while you go to the gate to let your freinds on to the pontoons, there is a push button to open the gates by the office. Hope this helps.
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