For an interesting ride try Chalk’s from Miami to Bahamas, I did it in a Grumman Mallard back in 1980 (in the one used in Miami Vice’s opening credits) we stopped off at Bimini and then flew onto Paradise Island, at each destination you taxi out onto the beach. For the return flight you lift off, hold it at 50′ and fly under the bridge that links Paradise Island with Nassau!
Another good one that I tried in ’81 was to fly Mallard from Long Beach Ca to Catalina Island, take off from land and then get met by RIB off the coast, ever tried getting out of a Seaplane in a Pacific swell?
Closer to home, try Lake Como flying club in Northern Italy, they have Cessna floatplanes and a Lake Buccaneer, I didn’t get chance to try them when I was there in 2001 but the scenery was spectacular, and ‘Pilot’ did a write up on the club in 2000