Here is a list of stuff to take:
1. Bedding such as sleeping bags, pillows etc. There are 9 bunks, three are double, ie: three are high, 6 are at normal level. They are all fitted with foam mattresses.
2. All your food. There are places to eat in the park, the nearest being Wellman Lake Lodge. Most have a shop selling basics.
3. Water. The water in the tap outside the cabin is lake water, so not suitable for drinking. The lodge will allow you fill containers with good water for a small fee.
4. Cleaning products such as dish soap, garbage bags etc.,
5. Toilet requirements (paper). The toilet is a biffy, outside. (you might need a flashlight)
The cabin has a working fridge, electric cooker, sink (no running water), kettle, utensils, radio, TV, VCRs and microwave. Electric heating keeps the cabin and bedrooms comfortable.