
moderate
6–8 hours
Comfortable hiking 6 km round-trip on uneven terrain with short scrambles and swimming 100–200 m through pools.
Hike, scramble, and swim your way through Wadi Shab to a hidden waterfall before cooling off at the turquoise bowl of Bimmah Sinkhole. This private day trip from Muscat blends geology, culture, and just the right amount of grit—guided by a local who knows every bend.
Morning light slides across the Gulf of Oman as the road from Muscat unwinds into sea cliffs and raw limestone. By the time you reach Tiwi, palms gather around a break in the rock—Wadi Shab—where the canyon invites you forward. A two-minute boat shuttle slips across the mouth of the wadi, and then the day begins in earnest: a footpath etched along aquamarine pools, boulders warm to the touch, dragonflies scribbling in the air. The water keeps moving, daring you to follow it deeper.

Aim to reach Wadi Shab by 8–9 a.m. for cooler temps and lighter crowds, then visit Bimmah Sinkhole on the return.
Closed-toe, grippy water shoes handle slick rock, boulder hops, and the mixed hike-swim terrain far better than sandals.
The final approach requires swimming 100–200 m through pools and a narrow slot; use the provided life vest if you’re unsure.
Opt for modest, quick-dry layers over swimwear around villages and shared pools; a simple T-shirt works well.
Traditional falaj irrigation systems have sustained Tiwi’s date plantations for centuries, channeling groundwater with remarkable efficiency.
Use mineral or reef-safe sunscreen, pack out all trash, and avoid climbing fragile banks; flash floods reshape wadis—stay on durable surfaces and follow your guide’s lead.
Essential for traction on slick limestone and protection during creek crossings and scrambles.
High UV exposure in the canyon makes broad-brim coverage and non-harmful sunscreen important.
summer specific
Stay comfortable moving between hiking and swimming while respecting local norms.
A compact towel speeds transitions; carry at least 2 liters of water with electrolytes in hot months.