Swim through emerald pools to a hidden waterfall, peer into the turquoise bowl of Bimmah Sinkhole, and trace Oman’s wild coast on a private full-day escape from Muscat. This practical, immersive outing blends geology, folklore, and a satisfying dose of canyon exploration.
More ways to explore the area's outdoor wonders
Morning light slides over Muscat’s whitewashed neighborhoods as your guide points the 4WD southeast along the coast road. The Gulf of Oman flashes to the left; limestone hills rise to the right, scored by time and rare desert rains. An hour later, the Earth opens—Hawiyat Najm, the Bimmah Sinkhole—its turquoise pool daring you to slip in and feel the cool mineral bite. Locals once said a star fell here. Geologists counter with collapsing limestone and underground erosion. Both stories fit a place that feels otherworldly yet grounded in rock and salt air.
Difficulty
moderate
Duration
8–10 hours
Fitness Level
Comfortable walking 6 km on uneven terrain with sections of swimming; heat tolerance required in summer.
Wildlife
History
Sur’s dhow-building heritage shaped trade along this coast for centuries; Hawiyat Najm (Bimmah Sinkhole) blends local meteor lore with classic karst geology.
Conservation
Carry out all trash and avoid soaps or lotions in the pools; use reef-safe sunscreen to keep delicate wadi ecosystems clear. Respect farms and private gardens along the trail.
Reserve your spot on the Wadi Shab tour with Bimmah Sinkhole tour (price per vehicle) today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Wear amphibious footwear
Rocks in Wadi Shab are slick and rounded—grippy sandals or light trail shoes you can swim in beat flip-flops.
Start early for heat and crowds
Beat the midday sun and tour bus arrivals by leaving Muscat at dawn; shade is limited in the canyon.
Carry cash for the boat crossing
A small local skiff shuttles you across the wadi mouth; bring small OMR notes for the round-trip fare.
Check weather—flash floods happen
If rain is forecast anywhere in the Al Hajar, avoid wadis; water can rise fast and without warning.
Amphibious sandals or water-ready trail shoes
Secure traction on wet, polished limestone and comfort while alternating between hiking and swimming.
2–3 liters of water per person
Oman’s coastal heat dehydrates quickly; bring more than you think you’ll drink.
summer
Dry bag or phone pouch
Protect electronics during the pool sections and the swim into the cave.
Sun protection (hat, UPF shirt, reef-safe sunscreen)
Limited shade along the trail and reflected light in the canyon make UV protection important.
spring