A primary stat of 400 is suggested. If your main stat isn't high enough, you'll see the following message:
The Octopus's Garden isn't a place for the faint of heart. I mean, sure, there's some shade, but there are several species of plant that could kill you, and a gardener that could kill you and enjoy doing so. Maybe you should get a ticket to ride somewhere else.
(It is recommended that you have at least 400 <mainstat> to adventure here.)
This is an underwater zone. It features all the restrictions and special mechanics of underwater adventuring. Amongst other things, this means this zone has a -100% penalty to meat drops and item drops.
If the player is wearing the equipment that allows either or both of the non-combats to appear, they will appear as normal non-combat adventures at a frequency of 5%. As normal non-combats, they can be affected by Combat Frequency modifiers.