My last stop in Cambodia was in Siem Reap to visit the temples of Angkor. Since I was on Koh Rong Samloem, I had no idea when the bus to Siem Reap would go. From some other travelers I knew that there was a night bus. In the morning I took the ferry back to the mainland and went to a travel agency to get my bus ticket. Everything worked out fine, without any problems. The bus didn't go till late afternoon, so I had some time to spare and spend the day at the beach.
After the nice days in Kep, I went to the island Koh Rong Samloem by bus and ferry. Koh Rong Samloem is a small island and officially owned by the Cambodian military. Luckily, the island is also open for tourists. Usually people describe the island as how the islands in Thailand looked like 20 years ago. Everything is super relaxed and you won't find any streets, supermarkets, ATM or any Internet connection. Everything runs on island time and personally I really enjoyed this and had a very relaxed time on the island.
From Ho Chi Minh City, I took the bus to Phnom Penh, the capital of Cambodia. The drive took only around 6 hours including the departure at the Vietnamese border and the entry into Cambodia. Later on, I should learn that it can take much longer crossing borders in Southeast Asia. My time in Cambodia was very interesting and there was a lot to discover.