Jellyfish Diving Gear is an accessory crafted by combining Jellyfish Necklace and Diving Gear at a Tinkerer's Workshop. It combines the functionalities of its ingredients, granting the ability to swim, breathe for an extended time, and emit light underwater and additionally slowing the rate at which damage from drowning is taken. Apart from combining these effects into a single accessory, it does not have other unique properties.
- 像所有潜水器材那样，水母潜水装备将水下呼吸时间延长到 1 分钟 33.33 秒，或者，如果手持芦苇呼吸管，延长到 3 分钟 6.67 秒。另外，当溺水时失去生命值地速度会分别降低至 1/4 或 1/8。虽然可以装备多件潜水器材，但这么做并不会让其效果叠加。
- It has a pink glow, as opposed to the light blue glow from the Arctic Diving Gear.
- 电脑版 1.3.2：外观更新。
- 电脑版 184.108.40.206：引入。