View north from King's College bridge

In earlier times the Cam was named the Granta, but after the name of the Anglo-Saxon town of Grantebrycge had been modified to Cambridge, the river was renamed to match. It has no connection with the much smaller River Cam in Gloucestershire.

The lower river

A Caius eight on the lower river about to be "bumped" by 1st & 3rd Trinity during the May Bumps rowing races 2005

The stretch between Jesus Lock and Baits Bite Lock is much used for rowing. There are also many residential boats on this stretch, their occupants forming a community who call themselves the Camboaters.^[1]

Navigation on the lowest section of the Cam, below and including Bottisham Lock (), is the responsibility of the Environment Agency.

From Jesus Lock and the Backs to Grantchester (middle & upper river)

The Backs: King's College chapel and Clare College

Access for mechanically powered boats is prohibited above 'La Mimosa' Pub (at the upstream end of Jesus Green) between 1 April and 30 September, when the middle and upper river are open only to manually propelled craft. The most common of these are the flat-bottomed punts.

Between 1 October and 31 March powered boats are allowed as far as Mill Pool, but few people take advantage of this, as there are very few public mooring places along the Backs, and the river is too narrow and the bridges too low to afford easy passing or turning for many boats.

Punts and canoes can be manhandled around the weir above the Mill Pool by means of the rollers, a slipway from lower to upper level. From the Mill Pool and its weir, the river can be followed upstream through Grantchester meadows to the village of Grantchester and Byron's Pool, where it is fed by many streams.

Tributaries

The two principal tributaries of the Cam are the Granta and the Rhee, though both are also officially known as the Cam. The Rhee begins just west of Ashwell in Hertfordshire running 12 miles through the farmland of southern Cambridgeshire. The longer tributary, the Granta, starts near the village of Widdington in Essex flowing the 15 miles north past Audley End House to merge with the Rhee a mile south of Grantchester. A further tributary, also known as the Granta, runs 10 miles from south of Haverhill to join the larger Granta south of Great Shelford. Another minor tributary is Bourn Brook which has its source near the village of Eltisley, 10 miles west of Cambridge, running east through Caxton, Bourn and Toft to join the Cam at Byron's Pool, where the poet, Lord Byron, is reputed to have swum.

Literature

Byron's Pool was certainly a bathing place for Rupert Brooke and the Cambridge neo-Pagans. Brooke used to canoe from Cambridge to lodgings in Granchester, which included the Old Vicarage. His homesick poem of 1912 evokes the river:

Oh! there the chestnuts, summer through,

Beside the river make for you
A tunnel of green gloom, and sleep
Deeply above; and green and deep
The stream mysterious glides beneath,
Green as a dream and deep as death.
...
To smell the thrilling-sweet and rotten
Unforgettable, unforgotten
River-smell, and hear the breeze
Sobbing in the little trees.
Say, do the elm-clumps greatly stand
Still guardians of that holy land?
The chestnuts shade, in reverend dream,
The yet unacademic stream?

?"The Old Vicarage, Grantchester", Collected Poems (1916)^[3]

One of Brooke's contemporaries, Gwen Darwin, later Raverat, grew up in the old mill by the Mill Pond. Her book, Period Piece, is a memoir of a childhood messing about on the river. The mill house is now part of Darwin College.

Darwin College seen across the Mill Pond

River Cam is referred to as "Camus, reverend Sire" in line 103 of John Milton's pastoral elegy Lycidas. Edward King, in whose memory the elegy was composed, was a fellow student at Cambridge.

Use for recreation

The confluence of the Cam (left) and the Great Ouse at Pope's Corner

Swimming in the River Cam near Grantchester Meadows

Like many rivers, the Cam is extensively used for several forms of recreational activity. These include angling, swimming and various kinds of boating.

Angling

The water isn't murky and is clean enough from its source to its confluence with the Great Ouse to support fish. The fishing rights on the west bank are leased annually to the Cambridge Fish Preservation and Angling Society.^[4]

The Cam below Bottisham Sluice may still hold Burbot, a fish thought to be extinct in English waters since the early seventies. A novice fisherman named Phil describes a fish he caught there that matches the distinct characteristics of the Burbot.

Boating

All boats require a navigation licence^[5] from either the Conservators of the River Cam or the Environment Agency.

There are public moorings just below Jesus Lock on both sides of the river and on the western bank just north of the bridge at Clayhithe (both with a maximum stay of 48 hours), and on the railings adjoining Riverside in Cambridge (unlimited stay, but usually fully occupied). The moorings on the commons in Cambridge (Jesus Green, Midsummer Common and Stourbridge Common) are reserved by the City Council for holders of its long-term mooring permits. There are also some privately owned moorings.

There is a public slipway next to the garden of the Green Dragon pub in Water Steet, Chesterton. This is occasionally used for launching small boats.

Punting

Punting is the most popular form of boating on the stretch of the river between Jesus Lock and Grantchester. Several of the colleges own punts, and they can also be hired from various companies, either with or without a person to operate them (a "punt chauffeur").

Powered boating

Powered boats may navigate as far upstream as La Mimosa pub (next to Jesus Green) all year round, and as far as the Mill Pool between 1 October and 31 March.

Rowing

The lower river between Jesus Lock and Baits Bite Lock is the training and racing home of the university college and town rowing teams. The Cambridge Lent, May and Town Bumps rowing races are held here.

Sailing

The Cam Sailing Club was founded in 1899. It is based at Clayhithe near Waterbeach and organises sailing races most weekends between March and November.^[6]

Swimming

The local swimming club's annual swim from the Mill pond to Jesus Green was cancelled for some years in the past because of higher pollution levels. However, swimming on the upper river is very popular in the summer, with many people bathing at Grantchester Meadows all year round. The New Year's Day swim is also a treat for more hardy bathers.

Flooding

The Cam is normally a placid river but flooding does occasionally happen. The most recent serious floods were in 2001, first in February and again on 22?-23 October^[7].

The Environment Agency is responsible for managing water levels and issuing flood warnings for the entire river.

References

1. ↑ Camboaters Community Association
2. ↑
3. ↑
4. ↑ Conservators of the River Cam -- fishing
5. ↑ Conservators of the River Cam -- boat registration
6. ↑ Cam Sailing Club
7. ↑ Photographs of the October 2001 Cam floods on the Cambridge 2000 site

See also

• Bridges in Cambridge
• Jesus Green Swimming Pool
• Punting in Cambridge
• Rivers of the United Kingdom

External links

• Conservators of the River Cam
• First and Third Trinity Boat Club guide to the Cam
• Cambridge Fish Preservation and Angling Society
• History of the River Cam (on the Camboaters site)

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