SmartGuide turns your phone into a personal tour guide around Alpena. This cosy coastal corner of Michigan is home to two sanctuaries: The Thunder Bay National Marine Sanctuary and The Island Park & Wildlife Sanctuary. It's a perfect escape to nature! Whether you are looking for a self-guided tour, audioguide, offline city maps or you just want to know all the best sightseeing spots, fun activities, authentic experiences and hidden gems, SmartGuide is the perfect choice for your Alpena travel g