Complex sentence: On the first expedition, Hall heard from the Inuit of relics from Martin Frobisher's mining venture at Frobisher Bay on Baffin Island, and travelled there to see them first-hand.
Split into simpler sentences: On the first expedition, the Inuet told Hall of surviving relics from Martin Frobisher's mining venture at Frobisher Bay on Baffin Island. Hall travelled there to see them first-hand.