Right or wrong place, I can tell you about my trip to Scilly this year.
I went to Isles of Scilly from Penzance on my Ribcraft 5.3 on Royal Wedding day, good trip E2-3 2 hours to St Marys. Intention was to stay full weekend following the Gig World Championships. However due to weather deteriorating ( BBC News - Hundreds stranded in Isles of Scilly by high winds
) we returned the following day E6 on the nose. Doubled the fuel consumtion to 2L/nM, crew seasick (not a problem but he forgot to lift his Gecko visor first) Yuk. Fabulous 6 dolphins doing their stuff surfing rib bow wave off Lamorna.
All in all a pretty memorable trip.
Launch at Penzance slip wide and easy, parking for car and trailer adjacent to slip, or at IOS Parking up at Wherrytown in secure compound. Have hot chocolate and cherry bakewells as 1/2 time stop at Wolf Rock. St Marys Harbour is easy entrance up St Marys Sound visitors swinging mooring/ visitors pontoon (need a tender though). Campsite at The Garrison but fully booked for Gig Worlds weekend (as is all other accomodation on St Marys for that weekend).
Make sure you take PLENTY of fuel. I took 90L in built-in tank plus 65L in extra jerry cans and am very glad I did in view of fuel consumption doubling on return trip. Drysuit for the trip, radar reflector, flares, PLB, Nav Lights, dry bags for kit (see photo) we took Gecko helmets and were very glad we did considering return conditions.
And have fun...