Make sure the bilge pump(s) are functional, and can actually pump water out. The (next-to-the) last time I tested mine there was a serious crack in the fitting to which the exit hose attached. The pump spewed more water into my face than out of the boat. If you have a cockpit-mounted manual bilge pump, know where the handle is and test it. I'd also inspect the hose clamps and hose sections connected to the thru-hulls; make sure the thru-hulls can be closed. If it were me, I'd also have tow insurance. If you are new to boating generally, you should review VHF hailing/distress protocol--which channels are used for what, etc. (
DO NOT RELY SOLELY ON A CELL PHONE.) A working depth meter (fathometer) is a must. Have chart(s) of the area(s) you will travel and study them
before you take off; specifically, locate secondary "abort" destination options, etc. Oh yeah--check the weather again b/f starting out; perhaps monitor it for at least two days b/f final departure day. Try out the mainsail reefing system during the sea trial. Use Windyty in addition to the NOAA forecasts, if you can. Finally--Nice Boat--enjoy

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https://www.windy.com/