You can't cross the Arabian peninsula to the Red Sea either as there's also a mountain range on the west of it.
The only viable passage would be through the center of Oman (no mountain here) but that would be a gigantic canal. And that wouldn't really solve the issue, as the Iranians could easily block the canal as long as it is within reach of their drones and ballistic missile: you just need to hit one ship in the canal to effectively block it.
The only viable passage would be through the center of Oman (no mountain here) but that would be a gigantic canal. And that wouldn't really solve the issue, as the Iranians could easily block the canal as long as it is within reach of their drones and ballistic missile: you just need to hit one ship in the canal to effectively block it.