Training at Lulu Lake
The quest is unlocked after completing The Great Plateau scenario.
"The Lynel of Ploymus Mountain has been defeated, opening the way for the waterfall-climbing workshop at Lulu Lake! Pick something up to prepare students for their first climb."
"The workshop was a huge success, with many of its attendees coming away as waterfall-climbing pros! Sidon, inspired by the students' tenacity, redoubled his own training efforts."
- Sidon: Bonus Combo