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Back Banks, Montagu

Tas 7330
Strong Currents

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UNPATROLLED BEACH

Beach number: tasR04
State/Region: TAS - Montagu
Beach name: Back Banks
General Beach Hazard Rating: 7
Least hazardous: 1-3
Moderately hazardous: 4-6
Highly hazardous: 7-8
Extremely hazardous: 9-10
Hazard rating refers to physical beach and surf conditions ONLY and does not include potentially dangerous marine life.
Beach

The northeast coast of Robbins Island is dominated by the 9 km long Back Banks barrier and beaches (RI 4 and 5). The main beach (RI 4) commences on the southern side of Mosquito Inlet as a low bare sand spit fronted by the 600 m wide tidal sand shoals. It curves to the southeast for 6.7 km, terminating at the base of 40 m high Little Bluff, the sand continuing on to beach RI 5. The beach is one of the longest and most exposed on the west north coast and is backed by a large inner and outer barrier. It faces northeast exposing it to all north through easterly wind waves which average about 1.5 m and maintain a continuous double bar system (Fig. 4.209) for 7 km from the inlet to Little Bluff. The double bar consists of an inner bar usually crossed by westerly skewed rips spaced every few hundred metres and a dissipative outer bar located up to 400 m offshore.

The outer barrier consists of a 500 ha well developed transgressive dune system between the inlet and bluff, with 10-30 m high hummocky dunes extending up to 500 m inland and including some active blowouts. The barrier is backed by the inlet in the north and the Eel Creek wetland in the south. This outer barrier is in turn backed by the most extensive inner barrier beach-foredune ridge system in Australia, locally known as the Remarkable Banks. Commencing on the southern side of Eel Creek 120 ridges occupy 1,500 ha and extend for 7 km to the southwest, narrowing from 3 km in the north to 100 m in the south. The ridges fill a V-shaped valley bordered by 50 m high White Rock Ridge to the east and a low wetland to the east. They are probably Pleistocene in age and deposited at a slightly higher sea level.

 

 

SLSA provides this information as a guide only. Surf conditions are variable and therefore this information should not be relied upon as a substitute for observation of local conditions and an understanding of your abilities in the surf. SLSA reminds you to always swim between the red and yellow flags and never swim at unpatrolled beaches. SLSA takes all care and responsibility for any translation but it cannot guarentee that all translations will be accurate.

Weather
Today
15°
wind
SE/9 km/h
 
  • Fri
    20°
    14°
  • Sat
    20°
    13°
  • Sun
    21°
    11°
  • Mon
    21°
    12°
  • Tue
    21°
    12°
  • Wed
    22°
    13°
SMITHTON AERO (22 km) issued at 06:00 (EST)
Water
19
Issued at Fri, February 10 07:01
Swell Forecast
Thursday
Friday
Saturday
  • PM
  • AM
  • PM
  • AM
  • PM
  • N
    0 m
  • ENE
    0.8 m
  • ENE
    0.7 m
  • ENE
    0.3 m
  • ENE
    0.5 m
Montagu issued at Thu, February 9 23:00 (EST)
 
Today's Tide
  • High
    2:03
    3.16m
  • Low
    8:30
    0.83m
  • High
    14:15
    3.19m
  • Low
    20:51
    0.51m
 
Burnie issued at Thu, February 9 10:00 (Local Time)
UV Index
10
No Service Providers for this beach:

There are currently no services provided by Surf Life Saving Australia for this beach. Please take the time to browse the Beach Safety section of this website to learn more about staying safe when swimming at Australian beaches. Click here to visit general beach safety information

No Service:

Beach not patrolled out of season

There are currently no services provided by Surf Life Saving Australia for this beach. Please take the time to browse the Beach Safety section of this website to learn more about staying safe when swimming at Australian beaches.

Click here to visit general beach safety information

 

SLSA provides this information as a guide only. Surf conditions are variable and therefore this information should not be relied upon as a substitute for observation of local conditions and an understanding of your abilities in the surf. SLSA reminds you to always swim between the red and yellow flags and never swim at unpatrolled beaches. SLSA takes all care and responsibility for any translation but it cannot guarentee that all translations will be accurate.