(Types while very unwelcome Chris de Burgh earworm is on continuous loop in my head...)
I'm sure we weren't the first, nor the last to do this one. Sadly no pictures, as it was far too long ago and any pics are long since lost.
We called it the Betty Swollocks Memorial Ride (but I don't think the majority got it. Ho hum).
Meet at Portsmouth Harbour Station. Take the Gosport ferry to... Gosport.
Ride Gosport to Warsash
Warsash to Hamble ferry
Ride Hamble to Southampton.
So'ton Town Quay to Hythe ferry
Ride Hythe to Lymington across the New Forest
Lymington to Yarmouth IoW ferry
Ride Yarmouth to W.Cowes.
Cowes river chain ferry, also known as the Floating Bridge across the Medina
Ride E.Cowes to Ryde
Ryde to Portsmouth ferry
Six ferries in one day. Or to ring the changes, you can come back from Ryde on the hovercraft but they only take 2 bikes per crossing.
For the next year we were going to ramp up the milage by meeting on Southsea seafront, ride east to the Hayling Island ferry (as seen elsewhere on this thread), ride the length of Hayling to Langstone bridge, turn west to get back onto Portsea Island and down to the Harbour Station, thus adding about 15 miles and another ferry. But it never happened. Either version is a highly recommended day ride.
Mrs653 and I did the Betty on the tandem. The other machinery was, er, eclectic.