Tantalus Drive loop from University of Hawaiʻi at Mānoa

If you're looking for one of the most rewarding road cycling routes from the University of Hawaiʻi at Mānoa, the Tantalus Drive loop delivers a challenging climb with incredible views. This 19.7-mile (31.7 km) route, rated as moderate by Komoot but demanding in practice, features 2845 feet (867 metres) of elevation gain and typically takes around 2 hours and 1 minute to complete. It's perfect for cyclists with good fitness seeking a rigorous workout paired with panoramic vistas of Honolulu.

What to expect on Tantalus Drive loop from University of Hawaiʻi at Mānoa

The Tantalus Drive loop starts through city streets and residential areas before transitioning into a lush tropical rainforest, where you'll ride under natural tree tunnels and past grand banyan trees. The well-maintained asphalt road averages a 5–6% grade, with some sections reaching a sharp 9%, so expect a consistent and demanding ascent. As you climb, winding roads and hairpin turns reveal stunning viewpoints of iconic landmarks like Diamond Head, Waikiki, and Pearl Harbor, especially from Puʻu Ualakaʻa State Park. This route is not for beginners; it requires good to very good fitness to enjoy the full experience.

Planning your visit

The Tantalus Drive loop is easily accessible from the University of Hawaiʻi at Mānoa area. Be aware that while the roads are generally well-maintained, some sections may have potholes, and there's often no shoulder, so you'll be sharing the road with cars. Exercise caution on misty mornings, as the pavement can become wet and slippery. For the best experience and clear views, aim for a clear day, avoiding the early morning mist if possible.

Trail details

• Distance: 19.7 miles (31.7 km)
• Elevation gain: 2845 feet (867 metres)
• Difficulty: moderate
• Estimated time: 2 hours and 1 minutes