
moderate
7–9 hours
Comfortable walking on uneven terrain for up to 6 km total with light scrambling and a sustained swim of 200–300 m.
Hike through palm gardens and swim into a hidden waterfall cave at Wadi Shab before dropping into the bright aquamarine of Bimmah Sinkhole. This full-day Muscat escape blends canyon walking, wild swimming, and coastal geology with practical ease.
Dawn on the coastal highway east of Muscat and the Gulf of Oman keeps pace beside you, silver and unblinking. By the time the road thins near Tiwi, cliffs tighten, palms gather, and a narrow canyon cleaves into the limestone. This is Wadi Shab, where a footpath threads past farms and falaj channels and clear pools call you forward. The water doesn’t shout; it dares—cool, glassy, and willing to carry you deeper than you planned.

Leave Muscat by sunrise to hike and swim before midday temperatures spike and crowds arrive.
Wear trail shoes for the rocky approach and pack grippy water shoes for the pools and slick boulders.
Bring small Omani rials for the short boat ride across the wadi mouth (about 1 OMR, times vary by day).
Avoid the wadi during or after heavy rain due to flash-flood risk; if in doubt, follow your guide’s call.
Wadi farming here depends on aflaj—gravity-fed irrigation channels that have watered Omani settlements for over a millennium. Hawiyat Najm’s name means “fallen star,” nodding to a meteor legend, though the sinkhole formed by limestone collapse.
Stick to established paths to protect crops and fragile banks, and pack out all trash. Use mineral sunscreen or cover up to reduce chemical load in the pools.
Protects feet and improves traction on slick limestone while moving between pools.
High heat and low humidity demand more water than you expect, especially on the return hike.
summer specific
Keeps essentials safe while swimming through multiple pools and the cave fissure.
Strong UV exposure and local norms make a UPF top and conservative swimwear practical and respectful.
spring specific