Djoer
Google
Ok some practical info based on my personal experience:
Entry to the park is 12k which you pay at entrance. Not all cards are accepted, I think either Mastercard or Visa for example did not work. So bring cash or different cards.
When you get at the parking lot, there is a small office to buy boat tickets if you want. The northern side is way prettier, so get tickets at Southern Spirit (yes the name is confusing). We were able to buy them the day before, but a few hours before it was all sold out. A few km back you have another company which had more spots, but they do the south side which is supposed to be a bit less pretty than north. Boat is 30k so like 30 euro/dollar.
There are toilets, a small shop for snacks, and a cafetaria for sandwiches etc. There are multiple pathways to follow, all with clear signs. However, for example the blue pathway was supposed to be 1.5 hours, but we walked it in a normal pace in like 20 to 30 minutes from the boardwalks to the car/parking lot. All on boardwalks so an easy walk, but worth it. Other option is to take the shuttle that leaves every few minutes, for free, from the boardwalks to the parking lot and other way around.
We ended up missing the boattour. I think the north side is definitely worth it. The southern side i heard different opinions. Either way it brings you closer than when you are on the boardwalk, but from there it also was quite impressive already. Also there are qr codes to scan at the start, for an audio tour with a few recordings with info on the glacier.
Timing: most people visit in the morning and stay until like 13.00, so if you can get a taxi or own car, I would say visit after most people are gone. We found that later in the day, like around 16.30, it was even less crowded. Also, you could easily take 2 hours for the boardwalks to experience it in a chill pace and view from different sides. The ride is like 1hr15 from Calafate.
Last but not least: transfer. We ended up renting a car with 2 others we met through the airbnb host. 75k for the day, with ServiCar near the main street. You do need creditcard to rent though. But had a good experience with them. Other companies were all sold out. Oh and parking is free.
Hope this info helps anyone who is still planning this trip:)