First picture is a beach at the Pacific coast, roughly 157 km away from San José, the capital of Costa Rica. Lots of animals inhabit the place, including monkeys, crabs, sloths, and iguanas. It's a national park, so please don't litter when doing a holiday there.
Germans: Do not reserve spots with your towels!
Click to enlarge
The second card shows "Volcán Arenal" (link to wikipedia). It's one of the most active volcanoes in the world and grows several meters per year. Surprisingly, it remains very popular with tourists.