My wife and I will be in Edinburgh April 28 -May 1, 2018. We are traveling through Scotland via train and will have no car. We'd like to make a day trip from Edinburgh to visit Stirling Castle and the Bannockburn Site, followed by at stop at the Kelpies at the Helix and then on to the Falkirk Wheel before returning to Edinbugh later in the evening.
Is this possible in one day using the train to Stirling, a taxi to the Castle and another to the Bannockburn Visitor Center, then the train back to Falkirk Grahamson station then a taxi to the Helix and a separate taxi to the Falkirk Wheel, then return to Edinburgh via the train from Falkirk High station? Will taxis be available at these various venues (to reach the next venue or the train station)?