Ghost of Tsushimafeatures one of the most aesthetically pleasing environments in AAA gaming, and that holds equally true for its impressive Iki Island expansion. That’s why no one would blame you foreagerly traveling to Iki Islandbefore completing the base game, whether intentionally or by mistake.
Typically, exploring the expansion’s area shouldn’t pose a big issue, but there’s a catch inGhost of Tsushima. Traveling to Iki Island locks out Tsushima Island until certain conditions are met, effectively stranding you on Iki Island with no way back. Naturally, many players would want to return to the main game. So, how can you do that?

When Can You Leave Iki Island?
Unfortunately, if you’vealready voyaged to Iki Island, you’ll need toplay through the Iki Island Story missionsto regain the fast travel option. But there’s a silver lining to this situation. You won’t need to finish all the main quests to regain the feature.
All you have to do iscomplete the “Jin From Yarikawa” main quest, which is the fifth quest in the expansion. After that, the fast travel option should return, allowing you to go back to Tsushima Island.

Ideally, you should be exploring Iki Island after completing the base game. However, sometimes curiosity gets the better of you, or you mayaccidentally start the Iki questwithout realizing you can’t return. Either way, here’s how you can get back to Tsushima Island.
How To Fast Travel Back To Iki Island
Once you have access to the Fast Travel feature, returning to Tsushima Island is only a couple of button presses away. Follow the steps below:
After a quick loading screen, you should be back on the base game’s map. Now, you can fast travel back and forth at your own discretion. Be sure to explore all of Iki Island, as it holds some interesting loot and side quests. It won’t take much time, as the expansion is only a dozen hours long.
Remember that everything you gain from Iki Island, whether it’s a new gadget or skill, carries over when you return to Tsushima Island.