Try and keep your skin in good condition, make sure that you moisturise - especially if you are swimming in a chlorine pool. Also invest in a good fake tan. St Tropez gives a great colour. Don't go over board!! I agree with keeping it natural, so just use a little bit of waterproof mascara. Brown if you've got light hair and black if you have dark.

when I'm going to the beach or the pool instead of using mascara or waterproof mascara which can be hard to remove, I simply curl my lashes then apply a little vaseline. It keeps the curl all day long, gives a natural clean effect and also nourishes eyelashes from the drying effects of chlorine, seawater, the sun etc!

Get your eyelashes and or eyebrows tinted. That solves the mascara hassle;)