If you are bringing a trailer I'd say it will easily be above $40 each way. I would also say that you need to plan your route carefully because trailers are banned on certain roads in NYC and the Belt Parkway is one of them I believe. From the FAQ - http://www.captainkayak.com/tournamentsFAQ.html
How can I get to the event with a camper or trailer?
LIE to Woodhaven Blvd. South take it over the Cross Bay Bridge (pay toll) then take Beach Channel Drive West/bear left and go over Marine Park Bridge (pay toll)..Park entrance is right after bridge on right.
Chesapeake Bay Kayak Anglers Co-Founder - www.chesapeakebaykayakanglers.com
Hobie Local Kayak Fishing Team - Backyard Boats, MD
I did not see that you were pulling a trailer. You are definitely going to be limited to roads you can use and the tolls will be higher. Redfish12 is probably right, I'd count on at least $50 there and back crazy as that sounds.
2015 Hobie Outback
2001 Dagger Cayman
trailer is convienient but if it saves me money I can rooftop on my RAV4 or bring my wifes 4runner and rooftop on it also we took it to Hatteras on the top last year no problems...
2016 Hobie Mirage Outback Olive