Vildmarks hotellet at Kolmarden Zoo is obviously ideally placed to stay at when you go to the Zoo. Its basically in the middle of the park and have immediate access to the best parts of the park, marine world, tiger world and the new Safari (which is excellent).
The hotel is during the summer packed with families coming in to see the animals at the Zoo and its therefore set up to cater for those types of needs. We stayed there just a few days ago and had our two kids with us. Here is how we see it;
1) Hotel in general: quite nice, its an old property that's been done up a few times and general standards are 3-4 star quality. The rooms are quite small but decent set up, clean and pretty good (but no luxury!).
2) Spa / bath: this was for us the best part of the hotel. They have a two level spa with an adventure pool (inside and outside) for the families on the bottom floor, good large sized sauna and very spacious relax areas and a pretty well stocked bar.
3) Restaurants: this was for us the big disappointment. Buffet only style and always packed with a queue to enter. Food was at best ok although service was friendly and pretty fast. We seriously recommend the hotel to split the restaurant and run a buffet section as well as an a la cart. We are quite sure that there are lots of families traveling and looking for a better restaurant experience than a buffet provides (which basically makes the food intake a process you want to get over and done with as quickly as possible)
4) Service: pretty ok and friendly and mainly provided by youngish staff.
All in all, the best and only option if you want to stay in the zoo. Has some good things but for the price (about 4.000 SEK per night for a room, breakfast and entry to the park) we feel it should provide more (slightly better/upgraded rooms) and better restaurant / food options.