About SideTracked Caches
This cache belongs to the SideTracked Series...a series probably familiar to anyone that has been caching in the United Kingdom. SideTracked Caches are intended to provide quick Cache-and-dashes at Train Stations...a distraction for the weary traveller. And of course, anyone else can go and find them too. More Information can be found at the SideTracked Website
Sunbury Railway Station
Sunbury Railway Station is the terminus of the suburban electrified Sunbury line in Victoria, Australia. It serves the north-western Melbourne suburb of Sunbury, and opened on 10 February 1859.

History
Sunbury station opened on 10 February 1859 as a terminus, with the railway line not extended further for two years. The three-track yard dates from that time, and was unique in Victoria. There was a large goods shed on its southern side, a large silo on its northern side, as well as sheep and cattle ramps and yards. There was also housing for railway staff, including two houses in Horne Street, and the stationmaster's house in Brook Street, which were all demolished in the 1980s.
Until 1981, proper interlocking of the signals and point work did not exist, and the station was not fully interlocked until 1998, when Solid State Interlocking was provided. On 16 April 2005, that interlocking was abolished, as part of the Regional Fast Rail project.
In late 1993, the station was refurbished, with upgrades included an enclosed booking lobby, an air-conditioned waiting room, repainted station buildings and landscaping of the garden area around the station. In 2005, as part of the Regional Fast Rail project, the layout of the station was again altered.
On 18 November 2012, the station was added to the metropolitan network, when the line from Watergardens was electrified. The station was also upgraded as part of those works. Electrification of the line to Sunbury was first proposed in the 1970s, along with a new station along the Sunbury bank north of the Jackson Creek bridge, to serve the Goonawarra housing estate. However, after a drop in population estimates, that idea was abandoned.

Platforms and Services
Sunbury has two side platforms. It is served by Sunbury line trains, as well as V/Line Bendigo and Echuca line services.
Platform 1:
- Sunbury line terminating services; all stations and limited express services to Flinders Street
- Bendigo line V/Line services to Southern Cross, Bendigo, Eaglehawk and Epsom
- Echuca line V/Line services to Southern Cross and Echuca
Platform 2:
- Sunbury line terminating services; all stations and limited express services to Flinders Street
- Bendigo line V/Line services to Bendigo, Eaglehawk, Epsom and Southern Cross
- Echuca line V/Line services to Echuca and Southern Cross
By late 2025, it is planned that trains on the Sunbury line will be through-routed with those on the Pakenham and Cranbourne lines, via the new Metro Tunnel.
bibliography: wikipedia
The Letterbox Hybrid
Tribute to letterboxing
Letterbox Hybrids are based on an older kind of container search, called letterboxing. Because letterboxing began in 1854, before GPS existed, the finder follows written instructions to discover the container.
Each letterbox contains a logbook, and a rubber stamp. When letterboxers find the container, they stamp the logbook with their personal stamp, and also stamp their own notebook with the stamp from the letterbox as a souvenir of their visit. The stamp and logbook remain in the letterbox for the next visitor to use.
Letterbox Hybrids - a geocache type
The geocaching version, Letterbox Hybrids, combines the use of GPS and the stamps of letterboxing. As with all geocaches, this cache type must include GPS usage. In addition, the cache description can contain written instructions to guide geocachers to the container.
(For example: Walk 75 metres due South)
A Letterbox Hybrid container must contain:
This Letterbox also contains some pencils and a few items of swag. (Please trade fair.)
Please leave the stamp in the letterbox after you log your visit and replace everything exactly as you found it. Thank you, I hope you have enjoyed the adventure.
To find the Letterbox you need to project a waypoint.
At the posted coordinates you are at a seat near the entrance to the station.
Look at the three letters on the top line of the nearby blue sign.
A = Digital root of the first letter
B = Digital root of second letter
C = A - B
D = The first number on the southeast face of the sign
E = The number of drinking fountains in front of you
F = A + D
G = D - E
Checksum: A+B+C+D+E=16
Now project a waypoint
AC m EFG°
Congratulations to Riddell for being the FTF.