
Off-leash hikes are not only a good way to exercise dogs, but also a great way to socialize dogs with each other. Shy dogs in particular can benefit from being around other dogs, but in a less threatening way than in a dog park, where a shy dog might feel cornered or overwhelmed. On a group off-leash hike, the dogs are focused on walking and exploring the environment, and they can choose to interact with the other dogs when they feel like it.

I have also noticed that off-leash hikes are good for dogs that tend to play too rough with other dogs when they are in a static environment like a dog park or someone's yard. During a hike, the dogs cannot stop and play in one spot for too long, or they will be left behind. So they tend to play a little, and then run along to catch up with the rest of the pack. This gives them a natural break from their play.
Off-leash hikes are also great for draining the energy of young hyper dogs. The humans and mellower dogs can walk in a straight line, while the energetic dogs can run back and forth and tire themselves out! Leashed walks can be fun too, and are a good way to train your dogs, but if you have multiple dogs with different energy levels, you may find it hard to satisfy all the dogs' needs with a leashed walk.

Oahu has a limited number of trails where dogs are allowed, but it's definitely worth finding a few in your area. Happy Trails!
In the short video clip below, you'll see various dogs hiking off leash with each other. When I board new dogs at my house, I like to take them all for a hike together before putting them in the yard or house together. It's a low pressure way for them all to get to know each other.