Things to do during winters-
1.) North lights chase and tour-
2.) Northern lights sailing tour
3.) Dog sledding tour
5.) Snow mobile tour
6.) Reindeer tour- feeding and sledding
7.) Whale watching
There are many tourist kiosks and travel shops scattered around the city centre who will give you a better insight on how to book these tours. Tickets can also be booked online, in advance.
Things to pack for the trip
1.) Rain jacket
2.) Water proof shoes
3.) Umbrella- it rains frequently during summers. Summers can be overcast and chilly and the temperature is around 11 degrees average.
4.) Atleast two good winter jackets-The coldest Tromso can get during winters is - 18 degrees with 2.4m depth of snow!
6.) Good sunscreen- since it is so close to the Arctics, you will get a bad tan
7.) Snacks and instant food- in case you are a vegetarian or get really tired of eating fish. Also food and drinks are quite expensive in the Scandinavian countries.
8.) Water bottle- Drinking water is safe unlike in India can be had directly from the tap. It is better to carry your own bottle and reduce the usage of plastic.
9.) Medicines- Relispray (might need it for all the walking)
10.) International charger
Tromso Event calendar-
June- Midnight Sun Marathon
July- Bukta Beach rock concert.
August- Jazz festival
September- Tromso Food Festival
October- Insomnia Techno Music Festival
September to April- Chasing northern lights.
Hope this has been useful. Do share your comments and any query that you have.