How many times can you visit the second level of the abbysal ruins?

Question

When I try to enter the second stage again, the block won't move so can you go only once there?

Answer 1

You can go there again. However, you need to go directly to the movable block when you enter. If you take a detour it doesn't work for some reason. The path from the leftmost entrance is the easiest.

See here for more details and a map:
http://pokemondb.net/maps/abyssal-ruins

Answer 2

No you can go there unlimited number of times but there is a step limit.
In the abbyssal ruins you can totally move only 500 steps .
For exact way I recommend watching walkthrough videos on youtube cause they presicely show you how exactly to go through and what hms will be required when cause I remember that hm flash and strength is required .