Bike Around Angkor Wat
Angkor Wat is the most incredible, authentic, and mind blowing ancient city in the world. Compared to other ancient wonders, nothing else comes close. And there’s no better or cheaper way to explore it than by bike (1$/day rental). Unfortunately the Cambodian government charges all tourists 20$/1 day, 40$/3 days, or 60$/5 days. Fortunately, a one day pass is valid for both the evening and the following day. For more info, check out the Budget Backpackers Guide To Angkor Wat.
Go Train Surfing
If you’ve ever dreamed of riding atop a train, Cambodia is the place. All the locals do it and so can you. Trains depart Battambang for Phnom Penh at 6:00am everyday. The top speed is only around 25 Mph so it’s really not too dangerous.
Bugs have remained a traditional part of the Cambodian diet since the Khmer Empire. You can try some for yourself around town or at most bus stops. They’ve got tarantulas, crickets, cockroaches, beetles, and large grass hoppers. It doesn’t fill you up, but it doesn’t cost much either. How can you refuse a fried tarantula!