There are a few simple things that you should do to enjoy your vacation in a much better fashion:
One. Tell your office that you are simply not available during the time of vacation. No point attending to your office work when you are supposedly on vacation. If possible, leave your regular cell phone behind and carry a cell phone with a new connection during the vacation. Simply to cut off any calls from office.
Two. Don’t check mails. Again, for the same reason as above.
Three. Plan your vacation well. Where all you are going to go. Reservations on trains and flights etc. Hotels well planned and booked. Where to eat well decided. Clothes and whatever other things needed planned and taken. No point regretting not having something when you are on vacation.