I think the beach can be a great chance to relax while on holiday. When my partner and I went to Egypt for a month, we had a few nice days scuba diving in Dahab, and we had a couple of days in Sharm and Hurghada as well to relax in between the rest of our Egyptian experience, which was crazy busy. I have also done a couple of long weekends in the Canaries. I think in can be an ideal chance to relax and catch up on leisure reading, but I couldn't do it for more than a couple of days.