Seeing as you have packed your runners, you might be thinking of exercising in the heat. As you are away on holidays, you have a bit of extra time on your hands, so why not get an hour a day or even half-an-hour of exercise done. Don't forget there are some things you should bear in mind when going out for your session:
If you plan to be out exercising for any time at all in the sun, I would certainly recommend getting some sunscreen. There are plenty of brands out there that cater for sports and tend to last quite well, even if you are pushing your body quite hard and sweating a lot or doing a pool session.
This is especially important for water sports where you won't feel that hot, but actually will be seriously sun burnt if you don't get the sunscreen on in time. Sunburn can be dangerous and put an end to your holiday exercise.
You should aim for light-coloured clothing that has non-cotton fabrics that won't hold the heat. Personally, I would go for dri-fit or fit-dri fabrics that are designed to keep you cool and deal with sweat while you are training and keep you comfortable when exercising in hot weather.
Just like the hangover cure, electrolyte sachets such as diarolyte are really important if you are exercising for a long period of time. These are sweated out of the body during exercise and are essential for bodily functions, so if your sport is longer than an hour, I would recommend getting salt tabs or electrolyte replacement tablets that you can pop in your sports bottle.
A definite must when exercising in the sun, they are not just to help you look cool. Sunglasses will enable you to see where you are going, blocking the sun's glare and they will also help to keep grit and dirt out of your eyes too, especially if it is a hot and windy day and you are exercising somewhere that is sandy or dusty.
Aim for something that gives you good eye cover.