In The Legend of Zelda: Tears of the Kingdom, the hero Link encounters many familiar faces on his adventure throughout Hyrule, many of whom could use his help. Players may remember the sisters Nat and Meghyn from Breath of the Wild, in which Link encountered them hunting for 
Hearty Truffle. Unfortunately, he was unable to help them on their mission. However, in Tears of the Kingdom, Link is finally able to assist them with their fun-filled fungal foray.
The quest “The Captured Tent” is available only after completing the sisters’ first quest, “Cave Mushrooms That Glow,” which starts at the Brightcap Cave at coordinates -3005, 1635, 0201. Upon completing this quest, the sisters will move to a new location and offer the next quest in their mushroom hunting adventure. Here's what players need to know.
How To Begin The Captured Tent Quest
Begin the quest by heading to the Snowfield Stable in the Hebra Mountains region, at coordinates -1637, 2564, 0233. Before embarking on the sisters’ quest, it's recommended to visit and clear the Orochium Shrine, located at coordinates -1637, 2642, 0239. This is the nearest shrine to the Snowfield Stable and makes for an excellent fast travel point.
Outside the Snowfield Stable and near the cooking fire, Link will find the sisters Meghyn and Nat. Upon approaching and speaking with them, they will mention discovering a cave at the foot of a mountain along the nearby road. They had set up their tent inside, but it was unfortunately overrun with monsters. They express their interest in exploring the cave to claim the mushrooms it contains, but aren’t sure what to do about their tent. Link will, of course, handle this for them, starting the quest “The Captured Tent.”
To reach the cave containing their tent, follow the road northeast from the Snowfield Stable. Continue along the road to the cave, which has a very large entrance making it easy to spot. The cave is situated just north of the road at coordinates -1374, 2864, 0198.
The Mount Drena Foothill Cave
Upon entering the cave, Link will discover the Mount Drena Foothill Cave. Inside, he will encounter three mobilins and a bokoblin near the tent that Meghyn and Nat had set up. To complete the quest objective, all Link needs to do is defeat these enemies to clear the area.
For the sake of completing the cave, after dealing with the enemies, head behind the tent and look up to the left. The player will notice a ledge marked by a glowing 
Brightcap mushroom. Climb up to this first ledge and collect the Brightcap along with some Chillshrooms. From there, here is another ledge above with more Brightcap mushrooms that the player can climb up to.
At the top of the second ledge, the player will find a passage blocked by breakable rocks. Destroy the rocks using, opening up access to a large room within the cave. In this room, the player will encounter a Bubbulfrog that can be quickly defeated to collect its Bubbul Gem, which are used to obtain the Mystic Clothing armor set and other treasures from Koltin.
Once the player has defeated the Bubbulfrog and picked up its gem, they can exit the cave by using the Ascend ability. To return to the Snowfield Stable, the player can jump off the hill and glide back down to the road, or use the Orochium Shrine fast travel point if unlocked.
Completing The Quest
The player should make their way back south toward the Snowfield Stable and inform Meghyn and Nat about their successful expedition. They will reward Link with a Spicy 
Steamed Mushrooms dish as a token of gratitude. After receiving this reward, Meghyn and Nat will mention a mushroom haven somewhere in Hebra. This leads directly into their next quest, "Who Finds The Haven," which is automatically accepted.
The Legend of Zelda: Tears of the Kingdom is available on the Nintendo Switch.