Ok this is a world heritage site and lots to see, we stayed close to the river and walked it's banks every day. We saw three large water monitor lizards swimming in the river. The smallest was more then a meter long.
We are. One restaurant along the river one evening and ate street food from vendors almost exclusively. Yum.
They had bikes with lights and music for short "taxi" rides all about.
Also had a two hour Thai massage for 60 ringgits or about $18 CAD.