The Spyglass is a craftable Nautical Tab item in the Shipwrecked DLC. It requires a Science Machine to prototype and is crafted using 1 Empty Bottle, 1 Pig Skin, and 1 Gold Nugget. It is also a reward from the Yaarctopus in exchange for Ceviche.
When equipped, it can be peered through to reveal a cone-shaped portion of the map in the direction the player clicks with Right Mouse Button (RMB).
The Super Spyglass is a better version of the Spyglass with doubled map reveal range. It can be crafted using a Spyglass, an Eye of the Tiger Shark and a Gold Nugget. It requires a Science Machine to prototype and can be blown away by Strong Winds.
The range reduction while on a boat doesn't apply to it, but the range is still affected by the time of day.
Either version can be found in X Marks the Spot treasure chests.
- The distance revealed by the Spyglass can be sailed in a short amount of time with boats, so using it in the direction you are sailing to doesn't provide much benefit. However, large areas of the map can be revealed in a short time by sailing in a straight path and periodically using the spyglass to peek at other directions.
- The art for the Super Spyglass was changed in the Eye of the Tiger Shark update to reflect it being craftable with an Eye of the Tiger Shark.