"If you have a fondness for San Francisco, you’ll love the views from Angel Island. Though this ride is not very challenging, riders of all ages, abilities, and strengths will love this outing. This ride consists of a loop within a loop. The larger, easiest loop follows Perimeter Road which encircles the entire island. Also referred to as the Lower Loop, the road is mostly paved with a long section of gravel. Entirely free of vehicles, the seven-mile Perimeter Road Loop is easy and mostly level with a few short, gentle hills. Young families with freewheeling kids and kid-trailers find this a perfect outing. If you’re a dirt-lover wanting more of a challenge, you have to treat yourself to the Upper Fire Road Loop, a narrow fire road, situated about 150 yards higher than the Perimeter Road Loop. It’s only slightly more challenging but the views and leaving the crowd below on the lower loop makes it a worthwhile ride. A bit more rugged with some ruts and potholes, adventurous beginners with little technical skills will enjoy it. Whether you ride one or both loops, you can easily spend a full day here when the weather is warm and sunny. Half the fun of this outing is taking the ferry from any one of four Bay Area ports."