Hi Meera If you plan to stay at one location (Rondvassbu) - there are several trails of different steepness and difficulty level. The Veslesmeden is lovely, and moderately challenging. Make sure you go to the top as the view of the 3 valleys is really worth it. Pack for 3 seasons- it got quite cold at the top (windchill below 0 C on 02-08-16) - hat, gloves. We didn't hike hut to hut but will do on our next trip. If you start at Rondvassbu, just talk to the locals and the experienced Norwegians who really know how Fontane advantage of all the beauty their country has to offer. The Trecking association's site offers full details on the different trails, elevation changes, places to stay. The full service huts like Rondvassbu can get pricey. But, if weather is good and you have the right gear, can always pitch a tent within 200 m of a hut and pay low fee for access to showers. We've hiked in 3 national parks on our first trip and mostly stayed at Campings. Next time will definitely bring a tent. I'm not sure how to get to Rondvassbu without a car. We had one as we traveled from Germany taking a ferry. The nearest parking lot is 6,5 km from Rondvassbu hut - an easy hike. It's just how to get to that parking lot... just call the hut in spring when they open and ask what they'd recommend. Have a great trip.