River Tamar
The Tamar is a river in south west England, that forms most of the border between Devon( to the east) and Cornwall( to the west).
The area is a World Heritage Site due to its historic mining activities.
The Tamar's source is less than from the north Cornish coast, but it flows southward and its course runs across the peninsula to the south coast.
The total length of the river is.
At its mouth, the Tamar flows into the Hamoaze before entering Plymouth Sound, a bay of the English Channel.
Tributaries of the river include the rivers Inny, Ottery, Kensey and Lynher( or" St Germans River") on the Cornish side, and the Deer and Tavy on the Devon side.
The name Tamar( or Tamare) was mentioned by Ptolemy in the second century in his" Geography".
The name is said to mean" Great Water."
The Tamar is one of several British rivers whose ancient name is assumed by some to be derived from a prehistoric river word apparently meaning" dark flowing" and which it shares with the River Thames.
The seventh century" Ravenna Cosmography" mentions a Roman settlement named Tamaris, but it is unclear which of the towns along the Tamar this refers to.
Plymouth, Launceston and the Roman fort at Calstock have been variously suggested.
São Sebastião River
There are two rivers named São Sebastião River, both in Brazil:
Week St Mary
Week St Mary is a civil parish and village in northeast Cornwall, England, United Kingdom.
It is situated south of Bude close to the River Tamar and the border between Cornwall and Devon in the Hundred of Stratton.
The parish population at the 2011 census is 657 Week St Mary has a 14th – 15th century parish church dedicated to St Mary the Virgin and the tower contains a ring of six bells.
The parish is in the diocese of Truro.
Coordinates= Lat/ Long: 50.7499,-4.50068999
Crocodile River (Limpopo)
The Crocodile River is a river in South Africa.
After its confluence with the Marico River, both rivers form the Limpopo River.
Saltash railway station
Saltash railway station serves the town of Saltash in Cornwall, England.
It is on the south side of the town between the Royal Albert Bridge which crosses the River Tamar and the Coombe Viaduct which spans a small tributary of the same river.
Trains are operated by Great Western Railway.
The station is from via.
The platform nearest the town is served by trains to Plymouth and the north, and the other platform closest to the River Tamar is served by trains to Penzance.
The line singles at the east end of the station passing over the Royal Albert Bridge.
River Ottery
The River Ottery  is a small river in northeast Cornwall, United Kingdom.
The river is about long from its source southeast of Otterham to its confluence with the River Tamar at Nether Bridge, northeast of Launceston.
The headwaters of the River Ottery are within the civil parish of Otterham but formerly came under the parish of Forrabury and Minster.
In 1311, the rector of that parish wrote: "..the river Ottery takes its rise in this parish and flows to Canworthy Water and so by Yeolmbridge to the river Tamar."
River Tavy
The Tavy is a river on Dartmoor, Devon, England.
The name derives from the Brythonic root" Tam", once thought to mean' dark' but now generally understood to mean' to flow'.
It has given its name to the town of Tavistock and the villages of Mary Tavy and Peter Tavy.
It is a tributary of the River Tamar and has as its own tributaries:
At Tavistock it feeds a canal running to Morwellham Quay.
Its mouth is crossed by the Tavy Bridge which carries the Tamar Valley railway line.
Plymouth Boat Cruises
The Plymouth Boat Cruises was an excursion boat operator on the River Tamar in South Devon.
It was started in 1981, in competition with Millbrook Steamboat& Trading Co Ltd.
In 1985 the Millbrook company withdrew from the Tamar, and several of its vessels were transferred to Plymouth Boat Cruises.
In 2005 the company was taken over by Sound Cruising
Badam River
The Badam River(" Badam") is a river of southern Kazakhstan.
It is a tributary of the Arys River.
HMS Tamar
Six ships and a naval station of the Royal Navy have been called HMS" Tamar", after the River Tamar in South West England:

Question: Are River Tamar and Badam River both located in the same country?
Answer: no