Most hostels and hotels will offer a tuk-tuk service to explore the Angkor, a World Heritage site. For $20, you can get a ride to the ruins as well as around the entire park, which is not recommended on foot. You also have the option of taking the sunrise tour, which will get you to the park at about five a.m. to see the sun rise over Angkor Wat. It's best to choose a guide rather than attempt it on your own, as the ticket office is in a completely different location than the park itself. Your guide will likely wait for you at each temple for as long as you wish to explore before taking you to the next spot.