The new hop on, hop off Midlothian Explorer bus begins operation on Monday, April 18.
Run by Prentice Coaches, the service will operate from 10am to 4pm, seven days a week until October 23.
Service 527, which will leave from outside the National Mining Museum Scotland in Newtongrange, will link the Borders Railway with Midlothian communities and visitor attractions.
The bus will stop at Dalkeith High Street (for the Corn Exchange and Dalkeith Country Park), Butterfly World at Dobbies in Lasswade, Straiton Retail Park, Roslin (for the country park and Rosslyn Chapel), Loanhead (for Stewart Brewing) and Lasswade village (for eateries including the Paper Mill and Laird & Dog), before returning to the mining museum.
Tickets for unlimited journeys throughout the day cost £5 for adults and £3 for children. A family ticket of two adults and three children will be £12. Children under five travel for free as do people aged over 60 who produce their valid concessionary pass.
The ticket also gives passengers access to special promotions. For example, if you produce your rail ticket or Midlothian Explorer ticket, you get £1.50 off the entry price for an adult at the mining museum. Children go free.
For more information on the Midlothian Explorer service visit: www.midlothian.gov.uk/mid-explorer or www.visitmidlothian.org.uk/explorer-bus