
moderate
8–9 hours (including drive from Muscat)
Comfortably hike 6 km round-trip with light scrambling and swim 100–300 m in calm pools.
Limestone, turquoise pools, and a hidden waterfall—Wadi Shab pairs a scenic hike with a refreshing swim, bookended by the surreal blue of Bimmah Sinkhole. This full-day outing from Muscat rewards early starts and smart packing with some of Oman’s most striking canyon scenery.
The coast south of Muscat unfurls in pale limestone and teal water, the highway skirting fishing villages and palm groves before bending inland toward a circle of impossible blue—Bimmah Sinkhole. The limestone rim leans in like curious onlookers while the pool below flashes aquamarine, its brackish mix of groundwater and sea teasing you to dive. Resist the urge to cliff-jump; the rock hides shelves and surprises. Instead, step down, let the cool water take the road dust off, and watch swallows arc between shadow and sun. It’s a fitting warm-up to the main act: Wadi Shab.

Aim to reach Bimmah Sinkhole by 8–9 a.m. and begin the Wadi Shab hike before the midday sun intensifies.
Wear water shoes or light approach shoes with traction for slick limestone and boulder-hopping; flip-flops won’t cut it.
Bring small cash for the short local boat transfer at Wadi Shab (often around 1 OMR; sometimes covered by guides).
Avoid wadis during or after heavy rain due to flash-flood risk; check local forecasts and follow guide advice.
The coast near Tiwi once fed the medieval port of Qalhat—today marked by the Bibi Maryam Tomb—while falaj irrigation channels have sustained oasis farms for centuries.
Pack out all trash and avoid using soaps in the pools. Sunscreens wash into delicate freshwater systems—choose mineral formulas and rinse off sweat before long swims.
Grippy soles help on slick limestone and during the swim-walk transitions.
Keeps your phone and valuables safe when swimming through the final slot to the waterfall.
The exposed canyon and coastal sun are intense, especially late morning to early afternoon.
summer specific
Provides sun coverage and modest swimwear that’s comfortable for hiking and swimming.