Do you have the whole boat with your group? My understanding is that the Odyssey doesn't ordinarily hit the sub. If you DO want to hit it I would be sure to arrange that well before stepping on board.
I did several dives on the sub with Blue Lagoon prior to boarding the Odyssey, and found that to be a good approach. They were only too happy to accommodate my request to "take me where the Odyssey doesn't go" since I was going to be on the boat for two-weeks after my three days at Blue Lagoon.
I did several dives on the sub with Blue Lagoon prior to boarding the Odyssey, and found that to be a good approach. They were only too happy to accommodate my request to "take me where the Odyssey doesn't go" since I was going to be on the boat for two-weeks after my three days at Blue Lagoon.