- "Lakeside Laboratory. Daily trying to get to the bottom of the mysteries of Lake Hylia! --Lake Scientist"
- — Sign
The Lakeside Laboratory is a location in The Legend of Zelda: Ocarina of Time. This laboratory is located near the waters of Lake Hylia and is the base of the Lake Scientist's research on marine biology.
There is a large, deep pool in which Link can dive, and his dives are secretly judged by the Lake Scientist. With the Golden Scale, Link can reach the bottom of the pond. For this achievement, the Lake Scientist gives Link a Piece of Heart. Link can sink to the bottom of this pool by using the Iron Boots. At the bottom, Red Rupees, a box containing a Gold Skulltula, and a cage where a motionless shark is imprisoned can be found. At the bottom, there are meter marks. Adult Link is about 1.5 meters tall, or 5 feet.
The Lakeside Laboratory appears in the Lakeside Keep on the Lake Hylia stage. Like the nearby Fishing Pond, it cannot be entered.