Tondisaar island travel

Hello! I want to travel to Tondisaar island in Võrtsjärv lake this summer.

The plan is:

- go there by my rowboat from the Eastern coastline (let's say from Järvemuuseum)

- set up a tent on the island

- spend there a couple of nights as a wild man

My questions are:

- Is it legal to do?

- Is it legal make an open fire there or should I use a portable stove?

- Is there some safe parking for a motorcycle for 3 days near the lake (in range of 20-30 kilometers)?

- Any other things I should care about?

If somebody of you have already been there, please share your opinion about this island and everything related to it and to your trip!

UPD: Thanks to everybody for your answers. I won't go there!