To successfully explore the Jellyshroom Cave and locate the Degasi habitat in Subnautica, adhere to the following structured steps:

1. Gear Up Properly
– Vehicle: Equip a Seamoth with at least a Depth Module Mark 1, as the Jellyshroom Cave reaches depths of around 270 meters, exceeding the Seamoth’s standard 200-meter depth limit. An upgraded Seamoth will offer safety and mobility.
– Diving Suit: If you prefer diving without a Seamoth, wear a fully upgraded Reinforced Dive Suit coupled with multiple Air Canisters. However, this method is significantly riskier and more challenging due to depth and potential hazards.
– Lighting Equipment: Bring a flashlight or utilize a Seaglide equipped with a flashlight to navigate through the dark, cave-like environment easily.

2. Finding the Cave Entrance
– Location: The Jellyshroom Cave entrance is located near Life Pod 17, approximately 500 meters northwest of your starting point.
– Beacons: If you have activated the beacon for Life Pod 17, you can re-enable it through the PDA’s beacon manager to assist in locating the entrance.
– Visual Cues: Look for grassy plateaus adorned with pink glowing mushrooms. Descend towards cliff faces, as the entrance is typically found around 379 meters from your life pod.

3. Navigating the Cave
– Landmarks: The Jellyshroom Cave features large, bioluminescent jellyshrooms and diverse plant life that serve as useful navigational aids.
– Compass Use: Regularly check your compass and consider placing a PDA beacon to avoid disorientation within the extensive network of tunnels.
– Scanning Opportunities: Take advantage of the opportunity to scan the local flora, including jellyshrooms, for valuable resources and information.
– Avoiding Hazards: Stay close to the cave walls to minimize the risk of getting lost; be cautious of aggressive fauna that may pose a threat during your exploration.

4. Locating the Degasi Base Inside the Cave
– Explore Carefully: Inside the Jellyshroom Cave, you will encounter several tunnels leading to the Degasi crash site. Proceed slowly and methodically to increase your chances of finding the base.
– Base Features: Within the Degasi base, you’ll find a multipurpose room, an observatory, a spotlight, a water filtration machine, and various PDAs containing critical narrative elements and blueprints, including the Ultra High Capacity Tank.
– Collecting Resources: Carefully investigate the area as it provides valuable data and supplies that are essential for your survival and progression in the game.

By following these organized steps—equipping appropriate gear, utilizing beacons for navigation, carefully exploring while being alert to dangers, and searching for crucial items within the cave—you can navigate the Jellyshroom Cave efficiently and find the Degasi habitat, which plays a key role in your adventure in Subnautica.