The 2025 cruises are available. If you want to cruise the Fjords on HAL I would suggest booking for 2025. I do not believe HAL has any ships that are currently capable of meeting the alternate fuel requirements that are set to go in effect for 2026 for the Fjords that visit Flam and Geiranger. I also do not know if other Fjords have been added to the restricted list, or how far in before the restrictions take place, or if the coastal ports face restrictions. i believe more will be known about 2026 and beyond restrictions late in 2024. But if you want to cruise the actual Fjords and not just the coastal ports, I would plan on it by 2025 at the latest, even if you have to book a line other than HAL. I was on a 9 night in 2022 (RCI) that visited the 3 major Fjords (Flam, Geiranger, and Olden ports).