When you're next to the water, it's only a matter of spotting the fishing spots, as depicted in the screenshot above. Keep going until you reach the Hillside Ruin in the lower right corner of the map, and then descend to the shore.

If you'd like to catch some Murkray with as little hassle as possible, however, go right as soon as you enter the Plains. When you're done with all of that, you can load into Plains of Eidolon and begin your search. We also recommend equipping and using the Luminous Dye item, as it highlights all the fish in the surrounding area, making it way easier to catch them than it is by default. Lanzo Spear: default Spear purchasable from Hai-Luk for 500 Standing.Murkray Bait: Cetus Visitor rank, purchasable from Hai-Luk for 200 Standing.Of all these, the earliest rare fish you'll realistically have access to is Murkray, and good news is that they're pretty easy to get a hold of. Otherwise, the chances of them appearing are practically nil. The catch with these fish is that they all require appropriate bait. Since we're talking about Plains of Eidolon here, let us first consider which species of local fish are rare: The mechanics of it are simple, but there's a substantial amount of content related to this feature, and some of the crucial information may be rather impenetrable on its own. You equip your spear, come close to a larger body of water, and wait for fishies to come by, which is when you take aim and throw your spear at them. Chances are that you're already well-aware of how fishing in Warframe works.

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