If you do go down to the southern part of Cambodia, you MUST visit the Kampot area. You can take the bumpy ride to the to of Bokor Mountain for great views and the ghosttown-like vibe. Waterfall and wildlife nearby, too. In the area in and around Kampot are many caves to explore. Some more rivers with rapids, and just down the road is the seaside town of Kep. The beach isn't the greatest but the seafood is cheap and delicious.
Please bear in mind that the rainy season starts in May for Cambodia. Travelling at end-April has pro and cons:
Many hotels (but not all) finish their high season rates on 31st March and the low season rates can be significantly cheaper (even more so through a good local agent or on-line hotel booking site). Thus you can get to stay in some GREAT hotels at not too punishing prices. Many of the guesthouses and smaller hotels however do not really run on high/low season rates.
Far fewer visitors than Dec/Jan/Feb so you can (with careful planning) get to experience some wonderful places in peace and quiet instead of the crowds
GOOD: End of dry season - fewer mosquitos
GOOD: Less competition for the best guides
GOOD: Roads to places such as Mondulkiri (NE) or Ratanakiri (Far NE) are more passable at the end of the dry season - can escape the heat of the lowland a little also. Excellent places to visit minorities tribes and experience different cultures to the lowland. Far North of Ratanakiri is still pretty remote even for adventurous travellers.
GOOD: For keen photographers I feel that the heavy skies and thunderstorms of the Rains make for some dramatic opportunities around the temples and on Lake Tonle Sap.
GOOD: Khmer New year can be fun if you are there early enough (mid April)
BAD: It can be uncomfortably hot and humid in April. Although the temperature charts don't show too much variation throughout the year for Cambodia it certainly feels much hotter in April than in, say November or December
BAD: You might get rained on on the beach!
All in all a wonderful country to visit that rewards time spent there. All too many people rush in to see Angkor Wat and then rush off somewhere else missing the real highlight of the country; the genuinely warm and welcoming Khmer people.
Cambodia: the slower you travel the more you experience.
Thanks a mill Andy,
Im kind of getting the impression that right around asia the rainy season seems the best season? The weathers still great, but there are light welcome showers? is this the same with Cambodia/Vietnam?
I prefer the rainy (low) season for lots of reasons but I would not want you to get the wrong impression.
"The weathers still great, but there are light welcome showers?"
It can rain for days on end and turn some unsealed roads into muddy challenges but hey "life goes on". After all what is a little wet - at least its warm wet!
On the upside you can equally run into weather as good as in the dry season but with lower prices and fewer crowds - wonderful!