Traveller's Rest Pit is a 2.2-hectare (5.4-acre) geological Site of Special Scientific Interest on the western outskirts of Cambridge.

[3] This is described by Natural England as an important site dating to the Anglian ice age around 450,000 years ago.

Non-marine molluscs and occasional large vertebrates indicate an open landscape.

These are thought to date to the Cromerian Stage, which preceded the Anglian, and are of Chellean, Acheulian, Early Levalloisian and Clactonian types.

Part of the site lies under the playing fields at Eddington, the remainder is private land with no public access.