There are three main trails in Deer Lake. Two of them are walking trails. The third is a multi-use trail.
The trails go all around the town and are considered flora and fauna trails. There is more than enough to see on these trails regarding nature. You can expect to see many different plants and a diverse range of wildlife.
There is a complete checklist of what animals you can expect to see in which season here.
Photos: alltrails.com; deerlake.ca