by Alexrocks911
Water Testing: Grassy Hilly Aqua Island Codes
Working Water Testing: Grassy Hilly Aqua Island Codes
Last updated August 22, 2026
No working codes right now
We're tracking Water Testing: Grassy Hilly Aqua Island and will list codes here the moment the developers release them. If you spot one first, send it our way below.
How to redeem codes in Water Testing: Grassy Hilly Aqua Island
- Launch Water Testing: Grassy Hilly Aqua Island on Roblox.
- Look for a Codes, Shop or settings button — usually on the side of the screen.
- Paste the code exactly as shown above. Codes are case-sensitive.
- Press redeem to claim your reward.
Codes expire without warning — if one fails, it was almost certainly pulled by the developer.
Found a code we're missing?
Submit it and we'll verify it before it goes live.
About Water Testing: Grassy Hilly Aqua Island
Test out the new water here! UPDATE: Added a Air GUI for when you're swimming underwater. It takes about 15-20 seconds for it to run out and then it takes about 5-10 seconds for the Health to lower and you will die. So PRO TIP: Get some air when you're air level is running out. ~GUI broken as of 2019. This game is from several years ago~