User blog comment:Peeper101/lost river exploration tips/@comment-38614374-20190326180534

The grand reef enterance isn't the best.I use the one half way between southwest and west.There are a couple of warpers and a crabsquid but sometimes the ghostie is near the enterance.The lost river cashe is literaly right next to the enterance so it's really good.It's also quite close to the alien desease reaserch facility and the cove tree so it's also close to the lava zone.Although a ghost leviathan guards those.

I recommend  getting the prawn suit and park the Cyclops above / in the enterance and then i use the grapple to get up there.For upgrades on the prawn I use jump jet,depth (once i have it) maybe thermal reactor andthe one that makes you recieve less damage.Ghosts only do 7-9% of dmg to prawn.

It might sound stupid but the Seamoth's good gas milage,fast speed and defnce system all add up so it's pretty reliable in the LR.I think torpeos are pretty useless as they are quite slow.

But DO NOT take the cyclops into the lost river itself as it gets destroyed by literaly everything in there.But since you don't want to take it down there, problem solved.

Hope this helped since it took me quite a long time to write this.