A woman floating peacefully in the clear turquoise waters of Wadi Shab.

Explore

Hawiyat Najm Park (Bimmah Sinkhole)

Explore a 50-by-70-meter limestone crater filled with turquoise water. Hawiyat Najm Park offers an easy stop along the Route 17 coastal highway.

Photo: tour listing on Viator

Bimmah Sinkhole is located about 30 to 40 kilometers north of Wadi Shab. Most visitors combine both sites into one day trip from Muscat, driving about 1.5 hours to reach the park.

Entry to the park is free. An underground tunnel connects the sinkhole to the sea, mixing fresh and salt water inside the 20-meter deep crater.

A person sitting on a rock ledge above a clear green pool in Wadi Shab.

The Sinkhole Rim

10 minutesPanoramic photos

A paved walking path encircles the entire crater. It gives you a clear top-down view of the blue water and the park layout. Stop here for wide photographs before heading down.

Water-level view looking through a narrow, sunlit rocky gorge in Wadi Shab.

The Concrete Staircase

5 minutesSlippery stairs

A long set of steep stairs connects the rim directly to the water's edge. Hold the handrails as you descend. The concrete gets very slippery from wet swimmers climbing back up.

Lush palm trees growing along the edge of a serene pool in Wadi Shab.

Turquoise Swimming Pool

30-45 minutesWater access

Swim in the 20-meter deep crater pool. The water is a refreshing mix of salt and fresh water. Small fish live in the pool and might gently nibble at your toes.