- "So, is the view from the observation deck really nice?"
- — Goron
The Observation Deck is a location from The Legend of Zelda: Twilight Princess. Found just off the main square in Hyrule Castle Town, the Observation Deck is a circular building leading out to a small deck overlooking the square, and Hyrule Castle. Several Gorons have taken over the building to use as a shop. The setup of this shop is different than the others, as talking to a specific Goron will allow Link to purchase a certain item, such as Lantern Oil, or a Red Potion. They also mark their prices up 10 Rupees for each item, justifying this action with "Regional Pricing", though their prices on Red Potion and Arrows are more reasonable than those of Chudley's Fine Goods and Fancy Trinkets Emporium.
It should be noted that the Goron who sells Lantern Oil will only sell it if Link has an Empty Bottle and will never fill Link's Lantern directly, unlike other merchants that sell the oil (as they will generally fill Link's Lantern directly if all his Bottles are full).
When Hyrule Castle is enshrouded in the dark crystal barrier, the Goron who sells Link Arrows is found on the actual deck portion of the Observation Deck. He states, "Something is wrong with the castle, but no one knows. I must keep this a secret to everybody." This is clearly a reference to the Secret Moblin's quote from The Legend of Zelda.
Interestingly, most of the Gorons working are children, and refer to the main Goron as "Father", marking this as the first potential appearance of a large Goron family.
The Goron Merchants in the Observation Deck serves as place to purchase Red Potion and Arrows, at least until the Castle Town Branch of Malo Mart opens up after Malo purchases Chudley's Fine Goods and Fancy Trinkets Emporium using money donated by Link (and the rebuilding of the bridge connecting Eldin Province to Hyrule Castle Town with improves the flow of goods between Eldin Province and Hyrule Castle Town). However it is the only place in Hyrule Castle Town where Link can purchase Lantern Oil (provided he has an Empty Bottle).
Link shoots his Crossbow from the Observation Deck in the Fruit Balloons stage.