Don't take it. From my experience, I barely got anytime to even relax on my phone before I was sleepy and went to bed. The only writing you'll have to do is reviews of the activities you've done, and that's a quick 5 minutes of ticking boxes.
We got told at a taster day we could bring laptops. But considering the rules about not overloading plugs we were given, you're better off not bringing it. You are very unlikely to have wifi. So unless you have some word documents to write, don't bother.
The program assumes you don't have a laptop, or you're illiterate so you'll never have to write anything worth doing on a laptop.