River Lynch

Dobbs Weir is both a weir in Hoddesdon, Hertfordshire and an area of Roydon, Essex in England on the River Lea. It is well known for angling, outdoor beauty and watersports. It is overlooked by the Fish and Eels pub.

Dobbs Weir Lock (No 6) is a lock on the River Lee Navigation near Hoddesdon.

Rawdon House is a former residence in the High Street of Hoddesdon, Hertfordshire, England. It was built as a house in 1622 by Marmaduke Rawdon, and extended in 1879. The Jacobean and Victorian wings of the building are Grade II* listed. In 1898 it became St Monica's Priory, a convent of Augustinian canonesses, a use that lasted to 1969, since when it has been converted for use as offices.Guilielma Maria Penn, wife of William Penn, died in Hoddesdon in 1694, and tradition has it that she was staying then at Rawdon House.

Hoddesdon Town Hall, also known as Hoddesdon Clock House, was a municipal building in the High Street in Hoddesdon, Hertfordshire, England. Except for the clock tower, which survives, the building was demolished in 1967. The clock tower remains a Grade II listed building.

Spital Brook is a minor tributary of the River Lea which rises in Hoddesdonpark Wood in the county of Hertfordshire, England. Spital Brook flows eastwards from Hoddesdonpark Wood, passing through Barclay Park, the former Hoddesdon Common, on its journey to the Lea, while an unnamed parallel stream to the south has been diverted to form ornamental waterbodies located within the former parkland of Broxbournebury. The stream crosses the Roman road, Ermine Street, before going under the A10 and Cock Lane. The original crossing place or ford of Spital Brook in Cock Lane remains and the original route it took ran parallel to the brook in a north–south direction. The brook passes through its namesake area, Spital Brook and marks the traditional boundary between the two parishes of Hoddesdon and Broxbourne. The stream runs parallel to the Lea Valley Lines by Broxbourne Station until it meets the River Lea close to Broxbourne Riverside, the former Broxbourne Lido. Spital Brook's profile is relatively steep for a Hertfordshire water course, and loses approximately 50 metres of height over the 1 kilometre upper section. Due to the brook's small catchment area, unless it is raining heavily, only the lower reach is likely to have water in it.

Hoddesdon () is a town in the Borough of Broxbourne, Hertfordshire, lying entirely within the London Metropolitan Area and Greater London Urban Area. The area is on the River Lea and the Lee Navigation along with the New River. Hoddesdon is the second most populated town in Broxbourne with a population of 42,253 according to the United Kingdom's 2011 census.It borders Ware to the North, Nazeing in Essex to the East, and Broxbourne to the South. The Prime Meridian passes just to the east of Hoddesdon. The town is served by Rye House railway station and nearby Broxbourne railway station.

Rye House Power Station is a 715 MW combined cycle gas turbine (CCGT) power station located near Rye House railway station in Hoddesdon, Hertfordshire.

Carthagena Weir is a weir located at Broxbourne on the River Lea. The well oxygenated water with depths ranging to over 16 ft, makes it an ideal environment for coarse fish including the common barbel.

Broxbourne railway station is on the West Anglia Main Line serving the towns of Broxbourne and Hoddesdon in Hertfordshire, England. It is 17 miles 17 chains (27.7 km) down the line from London Liverpool Street and is situated between Cheshunt and Roydon. Its three-letter station code is BXB and it is in fare zone B. The station and all trains serving it are operated by Greater Anglia.

Carthagena Lock (No7) is a lock on the River Lee Navigation at Broxbourne

Hoddesdon Town Football Club is a football club based in Hoddesdon, Hertfordshire, England. They are currently members of the Eastern Counties League Division One South and play at Lowfield. The club were the first winners of the FA Vase.

Rye House railway station is on the Hertford East branch line off the West Anglia Main Line in the east of England, serving the Rye House area of Hoddesdon, Hertfordshire. It is 18 miles 71 chains (30.4 km) down the line from London Liverpool Street and is situated between Broxbourne and St Margarets. Its three-letter station code is RYH. The station and all trains calling are operated by Greater Anglia.