8 days / 7 nights. 

http://waterbornexpeditions.com/norway

Swim with orca and humpback whales. In the arctic circle. Sub-zero temperatures. Risk of cold-shock, frostbite, hypothermia, and cold-induced pain. Little daylight. Long hours of darkness. Harsh weather. Isolation.

Expedition is limited to 5 guests.

You are responsible for bringing your own dive gear. A good polar wetsuit (at least 7mm) or drysuit, dive weights, mask fins, and snorkel.

Polosub makes a custom 9.5mm Smooth Skin wetsuit to your measurements for 351,00€ and ships in 4-6 weeks.

The Imersion 10mm wetsuit is the cheapest option at $280 + shipping

Dive gear rentals in northern Norway are scarce but *may be available from Dykker Sentret - the dive shop in Tromsø, Norway. In 2023, they had no rental gear available - however they did sell dive weights. The dive shop in Tromsø is open M-F 12pm - 4:30pm. Closed Saturday and Sunday.

Here's a recommended packing list.