I would still train, I'm sure you won't be eating as clean as normal so enjoy
It's vacation for chrissakes, "eating clean" should be the least of his/her worries. Damn people, get out, live life a little.
Bike Nut Vacation "To Do" List:
Bang out twins
Masturbate on the plane
Sleep in until noon
Bottom out 18 year olds
Pull a few all-nighters
All I can eat buffets
Drink until lower back aches
Post on Getgay
Dairy Queen
Sleep on beach
Let hotel maid "catch" me naked
Fight off going catabolic
Call my ex-wife's mom during sex and let her listen
Coffee and morning donuts
Tell a gay guy my name is Wiggs
Wear my "Big Bobs" outfit while combing the local high school
You get the jist....I stick to regular daily schedule, but I just relax more while doing it.