Colinton tunnel

An early afternoon no 44 bus to the Water of Leith path upstream from Spylaw Park, then walked to and through the Colinton Tunnel. This time all the paths were open; there have been issues with the resurfacing work in progress requiring another closure in early August. Current status 
Tunnel entrance from the south in extra. Back to the Visitor's Centre by the canal path, then another 44. 

Machine learning talk from Abrdn in the Bayes Centre in the evening; about how to persuade reluctant business colleagues to let you build experiments with their data, and that getting people to trust you is more important than your best new ideas about algorithms.