The Palm Monorail was opened on 30th April 2009 and runs along the trunk of the Palm Jumeirah in Dubai connecting the Gateway station at the entry to the Palm to the Atlantis hotel at the far end.
There are also 2 other stations along the way and an interchange station before the gateway which are completed but not yet open, although the train does stop at the stations but the doors don’t open. There have been no indications to date as to when the other stations will be open.
The Palm Monorail is not yet linked to the Dubai Metro but there are plans to link it at the Dubai Internet City (TECOM) station on Sheikh Zayed Road. It is however linked to the Dubai Tram system which opened on 11 November 2014 and you can get onto the Metro from the Tram at Dubai Marina.
The Palm Monorail is a good vantage point to see the Palm Jumeirah. It is often used by tourists staying at the Atlantis hotel to get a good view of the island and it also takes you from the far end of the island to the main part of Dubai where it links in with Al Sufouh Road (and eventually the metro). It is not as cheap to travel on the Monorail as other forms of Dubai public transport as it is not run by the RTA and is privately owned.
The Palm Monorail does not currently link with the Dubai Metro (except via the Tram at the Marina) and so if you want to travel along it from the Dubai end then you will either have to park in the massive car park at the Gateway station or get a taxi to the Gateway station either from Internet City Metro station or your location.