Morning: Start your morning at the Angkor National Museum to learn about the history of the Angkor temples. Spend the afternoon exploring the Angkor Wat temple complex, the largest religious monument in the world. Finish the day at Phnom Bakheng to watch the sunset over the Angkor temple complex.
Morning: Set off early to visit Preah Vihear temple, an ancient Hindu temple situated atop a steep cliff in the Dângrêk Mountains. Enjoy the breathtaking views of the Cambodian and Thai countryside from the mountaintop.
Afternoon: Head to Kulen Promtep Wildlife Sanctuary to see some of Cambodia's endemic and endangered species. Take a dip in the Kulen waterfall to cool off before heading back to your hotel.
Evening: Relax and unwind at the hotel.
Morning: Explore the Battambang countryside by bicycle. Visit the Battambang Bat Caves to see thousands of bats emerge from the caves at dusk.
Afternoon: Take a short hike to Phnom Sampeau, a mountain with a dark past. Visit the Killing Caves, where the Khmer Rouge executed thousands of Cambodians, and pay your respects at the memorial stupa.
Evening: Enjoy a performance by Phare Ponleu Selpak, a circus and performing arts school that empowers underprivileged youth.
Morning: Take a boat to Rabbit Island, a small island off the coast of Kep. Spend the day swimming, sunbathing, and enjoying fresh seafood.
Afternoon: Visit Kep National Park to see rare birds and wildlife. Take a hike to Sunset Rock for panoramic views of the Gulf of Thailand.
Evening: End your trip with a seafood dinner at the Kep Crab Market.
Consider visiting the Tonle Sap, the largest freshwater lake in Southeast Asia, to see the unique floating villages. You can also take a side trip to the Cardamom Mountains to visit Cambodia's largest national park.
To maximize your fun, consider hiring a local guide to take you off-the-beaten-path and show you hidden gems.
Other suggestions include visiting local markets, trying street food, and experiencing a traditional Khmer massage.