Krabi is nearly 1000 km from Bangkok.
Buses go directly from Bangkok to Krabi. With some stops this takes about 12 hours.
Krabi is a friendly town with a lot of (cheap) accommodation,
a great night market and a lot of good restaurants.
and the many scenic islands of the Phang Nga bay.
There are also a lot of scenic karst formations around.
A real treasure is:
Wat Tham Seua (Tiger Cave Temple)
Thailand has a lot of very beautiful places.
But at some moments I came at a spot, which felt like being in another world.
A world so peaceful and tranquil, so different from the madness we live in.
This is one of the great contributions of Buddhism to the world.