In The Legend of Zelda: Ocarina of Time Remake, the Sinking Lure makes catching fish easier.
The Sinking Lure can be used to sink to the bottom of the Fishing Pond so you can catch the rare Hylian Loach. When you catch the Hylian Loach, the Fishing-Pond Man will reward you with 50 Rupees. You won't be able to catch it without the Sinking Lure.
Here's how to get it.
How to Get Sinking Lure in The Legend of Zelda: Ocarina of Time
To get the Sinking Lure, there are prerequisites you need to meet.

You can achieve this either as young or adult Link. As young Link, you'll need to have caught a fish that is at least 50cm long and have won the Piece of Heart prize. Then, as adult Link, you need to have caught a fish that is at least 60cm long and have received the Golden Scale.
If you've met one set of these prerequisites, enter the Lake Hylia Fishing Pond and pay the Fishing Pond Man (10 Rupees as young Link and 30 Rupees as adult Link) to rent a fishing rod. In his dialogue, the Fishing Pond Man will mention something about the lure. This is a sign that it has spawned for that session.

READ MORE: The Legend of Zelda: Ocarina of Time Remake - How to Get the Goron Tunic
Once you get the rod, walk or dive around the pond and fight the red-and-yellow lure. It can spawn in a few locations:
- By the smaller waterfall pouring into the stone fountain on the north side
- By the larger waterfall on the south side of the lake
- Near submerged debris, logs, or rocks inside the pond
When you find the lure, you can approach it to pick it up. Ta-da - you are now the owner of the Sinking Lure! Take note: it can only be used in the fishing pond.
For more like this, check out how to get Fire Arrows in the Ocarina of Time Remake.

