What Nick said.Honestly, you probably will have better luck just socializing with people saying hi - enjoy a conversation. Mention you traveled far wish you had ski with you. You'll likely make new friends and be offered many rides.
Not sure most are gonna "rent" out a ski officially, but I see lots of guys happily letting other folks ride there ski more then themselves.
If you see my red and blue XFR, stop by and say hi. It the surf and water looks safe I'd be happy to let a traveler enjoy a session