The vet warned if we took the dog for walks in the woods, we needed to check her regularly for ticks. Ticks are a very small cousin of the spider from the arachnid family. The vet said they are known in the area and they bite both humans and pets. She gave us a small tool for removing ticks. The vet also encouraged us to wear long pants tucked into socks for protection.
The vet was right about ticks being in this area. An Anstruther Cottager also extends a caution -- she had a tick bite on her arm recently (in the past month). She hadn't been for a walk in the woods and isn't aware of where the bite occured. She wasn't even aware of the bite as it happened but had it checked when she noticed a mark on her arm.
A tick bite can lead to serious health concerns, the Ministry of Health (MOH) has some information here http://www.health.gov.on.ca/en/ms/lyme/public/
The above photo shows what a tick looks like and an indication of size.