I’ll forward that on to @CyclingGirl.
Spider Lake is kind of a tough one to start beginners on. Lots of rocks and roots, climbing and descending. Stay out of Replicator loop, the Humps and Skull Trail. Inner Peace isn’t too bad. The main road past Skull and Ribbon isn’t too bad - a little rough, but it’s wide, so easy to find a good line.
I’d recommend Macdonald Park or Norawarren to start beginners on. Shubie, with the short singletrack segments out on the MicMac Mall side would be a good option too. Nine Mile is an excellent trail for Newbies (when it’s dry), but it’s a long way out of town.