something you buy to help you remember a holiday
souvenir
to sit or lie in the sun in order to make your skin darker
sunbathe
a condition in which your skin is red because you have spent too long in the sun
get sunburnt
the time in the evening when you last see the sun in the sky
sunset
When you do a job without getting paid
do voluntary work
go up onto the top of a hill
climb a hill
Prepare your suitcase to go on holidays
Pack
the sport of swimming underwater with special breathing equipment
go scuba-diving
the activity of visiting interesting places, especially by people on holiday:
go sightseeing
a sport in which you are pulled along the surface of the water by a boat, while balancing on a pair of skis
waterskiing
