Travel Briefs

The central London location of Hertz (35 Edgware Rd., London; phone 0843 309 3049) is offering rentals of electric bicycles, which increase pedalers’ speed. They are powered by rechargeable batteries that last for a day of riding. For multiday rentals, an ordinary wall outlet can recharge the battery.

A bike can be rented for £19.99 (near $28) per day, which is less than the full-day fee of £51 ($72) with the city’s bike-sharing program.

Day tours of historic locations under the city of Berlin are offered by Berliner Unterwelten (Brunnenstrasse 105, 13355 Berlin, Germany; phone +49 0 30 49 91 04 17).

Among six guided tours are “Dark Worlds,” exploring a bunker from WWII, and “Breaching the Berlin Wall,” looking at tunnels, subways and empty sewers once used by those fleeing East Germany.

Tours Tues.-Sun. year-round in several languages; English-speaking tours at least once a day. 90 minutes at €10 ($15) adult or two hours at €13; senior discount. Not accessible for mobility impaired.

Australia Rail Plus passes allow unlimited travel during a three- or six-month period, including travel on trains like The Ghan and The Sunlander.

Four passes focus on Australia’s east coast, with routes between Melbourne and Cairns, while four others cover tracks heading west or north. They range from the Backtracker Rail Pass (three months, US$301 per adult, or six months, $422) to the Ausrail Pass (three months, $716, or six months, $980).

Contact ACP Rail (Montreal, Canada; 866/938-7245). Rail and hotel packages are available.