Starved Rock

Starved Rock

Starved Rock is a prominent, some 30 m tall cliff at Illinois River. In the small side valleys have formed 18 beautiful canyons in sandstone rocks.

Lusk Creek Canyon (Indian Kitchen)

Lusk Creek Canyon

Impressive canyon on Lusk Creek that has formed in Pennsylvanian sandstone. The area contains many rare and endangered species of plants.

Open Ceiling Cave

Collapsed sea cave – a circular sea basin that is connected to the sea with a large cave – natural arch that is some 13 m wide. Sea waves enter this cave. In the middle of this basin stands small island – remnants of the fallen cave ceiling.

City of Arches at Honaunau Bay

Some 3 km long stretch of sea shore with numerous interesting geological formations in pahoehoe lava: natural arches, sinkholes and also several blowholes.

Blackman’s Bay Blowhole

Impressive collapsed sea cave – former blowhole. Now it forms a large natural bridge with a road going over it.

Devil’s Bridge in Antigua

Devil's Bridge in Antigua

Natural bridge at the sea with a stormy basin between the bridge and mainland. The bridge is some 20 m long and up to 4 m wide. There are several smaller blowholes at this natural arch.

Punakaiki Pancake Rocks and Blowholes

Blowhole in Punakaiki

Unusual seaside cliffs that are formed from numerous thin layers of Oligocene limestone. As a result, there have formed diverse cliff formations that at some places resemble heaps of pancakes. In the jagged cliffs have formed smaller natural arches and several roaring blowholes. These blowholes are especially impressive at high tide and strong south-western winds.