Edit: ok I cheated using Gemini. Gardening leave is you are leaving or were terminated, and they have to pay your salary but don't want you near company assets. On the Beach is you are waiting for your next assignment and have access to training and such, you aren't consider a security breach.
I'm in both worlds right now: I wasn't technically terminated, so I can look for a new position (like being on the beach), BUT they think I'm a potential security breach so my access to corporate resources is really nerfed (like on gardening leave).
Gemini calls it being a "displaced employee". I like to think I'm just on the beach in Bali working on my own projects.