
moderate
8–9 hours
Comfortable hiking 5–7 km with light scrambling in warm conditions and able to swim 50–100 meters in calm water.
Hike into Wadi Shab’s limestone canyon, swim through emerald pools to a hidden waterfall, then cool off at Fins Beach before descending into Bimmah Sinkhole’s vivid waters. This private day trip from Muscat blends scenic geology with easy logistics and just the right dose of adventure.
Dawn breaks over the Gulf of Oman as the road east from Muscat unfurls toward cliffs and palm-draped canyons. The Hajar Mountains rise in pale limestone, and the sea flashes silver to the right. By the time the vehicle rolls into Wadi Shab’s parking area, the air is warm and the canyon is awake—date fronds rustle, a falaj whispers through stone, and a narrow water channel dares you to cross. A short local boat shuttle skims you to the trailhead, and the adventure begins.

Leave Muscat at first light to hike Wadi Shab before the sun hits the canyon and crowds arrive.
Trainers or sturdy water shoes handle slick rock and boulder steps better than flip-flops.
Carry at least 2 liters per person plus salty snacks—heat and swimming can sneak up on you.
Avoid wadis during rain and 24 hours after; limestone channels can surge without warning.
Aflaj irrigation channels still feed date groves in these valleys and are part of Oman’s UNESCO-listed water heritage. Hawiyat Najm (Bimmah Sinkhole) carries a folk story of a star’s fall that mirrors the real karst collapse beneath.
Pack out all trash, stay on established paths, and avoid standing on fragile falaj walls. Choose reef-safe sunscreen to help keep the wadi pools clear and healthy.
Essential for traction on wet limestone and boulder hopping inside the wadi.
Protects electronics during the swim to the cave and any wading sections.
Shields from strong coastal sun while keeping you cool on the hike.
summer specific
Useful after swimming to stay comfortable for the drive back to Muscat.