Basically everything revolves around the search for metal.

First, the shore lines and their biomes are charted from the sea. This is done whenever current exploitable resources are exhausted. Second, a base camp with a portal is established on the shore. This serves as an ore collection point and hunting/forage lodge. Third, the biome patch is charted. Resource sites are marked, unlocked, and possibly cleared of hostiles. Finally, a cart is taken to each ore source, filled with ore, and hauled back to base camp. Ore is then shipped back home by the boat load. Much mead is drunk and dancing done as the ore smelts. Repeat as necessary.