islands was Phase 1. Three more islands are planned to be constructed during Phase 2. These islands will be called Centrumeiland (Centre island), Strandeiland (Beach island), and Buiteneiland (Outer island). Construction of these was temporarily delayed by a Superior Administrative Court decision to annul the building permit for Phase 2 due to lack of consideration for the local environment. However, as of 2020, building activities had restarted, and homes on Centrumeiland were under construction, while Strandeiland was being raised from the lake. Parks and beach A park is situated on Haveneiland, the Theo van Goghpark. A much larger park, the Diemerpark, was created parallel to the Rieteilanden and is connected by bridges. It has a small sandy beach on the lake, overlooking IJburg. A larger sandy beach (Strand IJburg - IJburg Beach) was created on the western side of Strandeiland. Public transport The islands are connected via a main thoroughfare, IJburglaan (IJburg Avenue), served by the IJtram (tram line 26) to Centraal Station. It is designed as a fast tram, with relatively widely-spaced stops, and is the only route in Amsterdam which carries non-folding bicycles (a maximum of two at a time). Demand has steadily risen as IJburg has grown, and peak frequency is now as high as 15 trams per hour. Headway is now at its minimum, since for safety reasons only one tram in each direction is allowed in the Piet Heintunnel at any one time. To increase capacity further, in 2020 GVB has converted to operation with pairs of trams coupled together. The bottleneck has also been eased by the introduction of bus service 66 which connects IJburg to Bijlmer ArenA via the only other road connection, the Benno Premselabrug at its southeastern end. A bicycle ferry between Zeeburgereiland and the Oostelijke Havengebiet may be opened as early as 2021. Longer-term plans are under development to connect IJburg to the Indische Buurt by extending tram 3 or 14 from the Flevopark terminus, Proposals to build a metro line from Amsterdam to Almere via a tunnel under IJburg have also gained some political support. Bridges Since IJburg is in the IJ Lake, many bridges are required. The first bridge built was the Enneüs Heerma Bridge (bridge 2001) and connects Zeeburgereiland with Steigereiland. This bridge is the main route to IJburg and is also used by the tram. The bridge, designed by the English architect Nicholas Grimshaw was built