young 30s couple arriving in Bangkok in late July 2012. I think July 23 or 24th. We've got ~3 weeks - till Aug 16th or so - to spend doing whatever wherever. We both like and want some rugged adrenaline action, some hiking, tent camping is fine, perhaps a multi-day white water rafting tour in remote northern thailand or borneo? i'd climb that mountain in Borneo but everything I read says it'll likely be high traffic. I'd rather avoid the crowds. we'll see bangkok and other cities, but majority of time I'd rather stay much more remote. that said we will want about 3-4 days on a beautiful beach (would consider resorty) towards the end probably. I know it's rainy season for Thailand, should we make our way to Bali to end there?

One of us has been to Malaysia & Singapore, would rather not go back for this trip.

these forums are great, would love to see your suggestions.

Let me answer part of your question in regard to Burma. It is not legal to camp in Burma, you are required to stay in hotels or guesthouses that are permitted to accommodate foreign travelers. The wildest areas of Burma are off limits to foreigners.

As far as Thailand is concerned, note that it isn't rainy season everywhere in Thailand. Take a look at www.weatherbase.com and look at each city you are considering for historical weather info.

Certainly Bali will have good weather at that time of the year, but note that it is high season - higher prices, more crowds.

You mention Borneo... note that Malaysian Borneo (Sabah & Sarawak) is more accessible than Indonesian Borneo (Kalimantin).

Indonesia is wonderful for outdoorsy adventure travel and there is certainly no shortage of mountains, rivers and tropical forests.

For climbing, this website is a good place to start. It's an especially good resource for information on conditions and guides.

http://www.gunungbagging.com/

In addition to being high tourist season, July 20 to August 20 is also Ramadhan. The guides have to earn a living so they will continue to work through the fasting month, but if fasting (remember this means no water too) you may not get their best performance. It's important to ask your guide is he will be observing.

At the end of Ramadhan are the big Islamic holidays -- this year around August 20 with a few days on either side. Millions of people will be traveling at that time, so take care to plan in advance. Airports, trains and ferries will be overwhelmed.

Don't discount Borneo Mt Kinabalu is a great and yes , it is busy but not that busy. Other places we enjoyed were the trek to The Pinnacles in Gunung Mulu NP a tough 3 day trek along the "headhunter Trail" through the rainforest & several mountains. Lots of caves and rivers in the area too.

We also spent some time in the Bario Highlands which really is remote and I doubt you will see any other tourists. You could stay in one village or trek from place to place.

Virtually all the national parks in Thailand offer camping and hire equipment - however Ive witnessed the aftermath of a rainy night and the only tents still in use were the privately owned ones - all the NP tents were hanging out to dry having seemingly had all the waterproofing qualities of a sponge. As it is the wet season you might want to invest in a good quality small tent if only as a refuge for when it rains.
Many of the rivers will be petty swollen by then and you might also want to review the safety of rafting in some countries.