Translation of pictogram in German

This site was one of the country's most famous places as Tomb Rider with Angelina Jolie was filmed there. It was built like a pyramid with many stairs and little towers. The place was called Angkor Thom.
Anyway, the entire bus ride lasted four hours and we finally arrived at the city of Halong. We were supposed to take a two day luxury boat tour on a ship called The Lagoon Explorer.
We spent a few hours around Plaza de Armas, the main square of the town, eating, shopping and sightseeing. A hassling boy tried to sell us some Peruvian chocolate for one Peso.