The Heroes' Pursuits: Kaer Trolde - Skellige
Quest Giver: Larvik Notice Board/Svana or any of the Race Masters
Other Requirements: N/A
On Skellige all of the Heroes Pursuits quests can be started by visiting the Larvik Notice Board or by speaking with Svana in Larvik. You can also speak to any of the Race Masters (all of their locations are shown on the pages for these quests). Each of these quests are related and they basically form one long chain.
The Heroes Pursuits: Fyresdal, The Heroes Pursuits: Kaer Trolde and The Heroes Pursuits: Fayrlund (this quest) are the first three of the chain. Beating all of them will unlock the final quest in the chain, The Heroes Pursuits: For the Goddess Glory.
This quest begins by speaking with the Race Master in Rannvaig. It's a race straight north along the path until you reach the entrance to Kaer Trolde. Much like all of the other races in Skellige, if you have good gear for Roach you'll have the stamina to sprint the entire way.
Kaer Trolde Rewards: Zerrikanian Blinders, 80 Crowns and EXP