Upland Zorana Skyview Tower
Tears of the Kingdom
The Upland Zorana Skyview Tower is located in the Upland Zorana province. Link arrives to find Bazz trapped outside the tower in sludge and was unable to move. This begins the side quest Mired in Muck. Additionally, the sliding doors also appear to be stuck from sludge.
You will need to have at least two Splash Fruit. Fortunately there is some growing nearby. Use Splash Fruit and throw it on Bazz. This will eliminate the sludge and free Bazz, in which he will award Link with a Zora Spear.
After freeing Bazz from the goop, the side quest is marked complete, and then Link can use another Splash Fruit on the tower entrance to gain access.
Toss a Splash Fruit at the Sludge