Well, if you have established patterns on prior vacations such as: sleep in, eat late, etc. you could try avoiding that and try setting up something new: get up early and go for a walk or run or swim, read up on local history and visit interesting sites, dine early and go to a coffee shop or something.
I think the habitual 'drop-off zones', habits we have associated with drinking in the past, are the things to avoid and replace with different behavior.
For me, 'sitting by the pool' usually meant 'drinking by the pool' so that had to go for awhile.