In keeping with their natural desire to burrow, tunnels provide endless fun for guinea pigs. They can crawl through the tunnels and may even decide to indulge in a nice nap right in the middle of the tunnel. Guinea pigs may play “chase” with one another in and out of the tunnel. Provide a cage that is large enough for your guinea pigs to run around in their tunnel together. Putting the tunnel on the floor in an area where your guinea pigs have more space to run around in can be more enjoyable for them. It will also help them to get their much-needed exercise, as sedentary guinea pigs are at risk for cardiovascular disease.
You can purchase tunnels fit for guinea pigs at pet supply stores, or make them inexpensively at home using cardboard tubes. Make sure they are big enough for your guinea pig to fit through. Light bulb boxes can also work. Tape them together and add more boxes to make the tunnel larger. Place newspaper on the “floor” of the tunnel to help it last longer. Tug-of-War. Guinea pigs love to play with one another and will be more playful in a cage where they have adequate space. An old sock or a simple piece of newspaper may result in two guinea pigs engaging in a fun game of tug-of-war. They may also use the sock as a pillow or drag it around their happy little home.