I went there with my wife on my motorbike to see this 'Mahagnao National Park'.
I read good things about it and I gave it a try.
The road to the park is long and 90% of the road is not paved.
I really was worried to damage my motorbike. I had to ride over stones and rocks. My focus was all the time on the road and I could not enjoy the nature. One time I almost fell off the bike. You must see it to believe. I'm not kidding. Terrible road.
It took us 1 hour from Burauen to the lake.
I could not find an access road to the first lake. I only could see a bit of it through high grass. The second lake is ok but nothing special. I did not see any boat or any other signs, that 'tourists' are welcome.
The park sign is old and not readable.
No map, no guidelines, nothing.
If you go there by car (only four wheel drive) there is not even a official parking space.
We were disappointed and we won't go back.