Ship Inn at Itchenor has good food and you can stay for a short while on Harbour masters ponton if you ask nicely (and pay the harbour dues ) HAYLING ISLAND SAILING CLUB
http://www.hisc.co.uk/ does a really great Sunday lunch with excellent bar with views to die for . Call on M1 or M2 and ask if ok to leave boat on pontoon while eating (it will be fine but best to ask ) Both good at all states of tide .Ferry boat at Langstone end always good entertainment watching fat pykies launch speed boats etc .Having looked at HISC meetings I assume you are looing after the RYA nats ?