Help in base game plz
For the people who have finished the game, I am currently stuck on the Jellyfish puzzle on Giant's Deep where I need to search for the Probe Tracking Module and it seems as though it is in the core of the planet underneath the ball of electricity. I already know of the anticlockwise tornadoes taking you underwater and I also know the Feldspar information about the insulated jellyfish allowing you to enter the core. However, I have tried and I can't seem to find any way to get inside a jellyfish, even involving the jellyfish island on the Giant's Deep. Please no spoilers as I have tried to go through the entire game without using a guide however this is driving me genuinely insane. I have two leads I can also pursue on Dark Bramble instead however they seem like a dead end and I already found Feldspar and the frozen jellyfish on there too. I'd prefer if you don't explicitly say anything but rather just try to point me in the right direction and tell me whether it's worth continuing with this lead as opposed to going to Dark Bramble and also of course no spoilers please not even vague ones and not even telling me which leads are important to the end, etc, because I'd love to preserve the clean experience as much as possible and I'm adoring this game so far. If there's something important, assume I don't know it and also don't mention it but I guess this goes without saying on this sub and I know you guys are great with not spoiling things. Thank you in advance!
Guys I figured it out! Thank you so much for the help and also mainly for not spoiling anything at all! I love this community and enjoy your expedition everyone!!!