Mr Shaw said the festival had its official opening and walkers did a short walk around town, with the flags of countries taking part, on Friday night.
Saturday's walks involved 10km, 21km and 42km marathon forest routes, and Sunday's involved 10km, 20km and 30km walks through the city, parks, thermal reserves, the lakeshore and points of historical interest.
Walkers from Melbourne, Yvonne Morris and Jamie Stewart, came over for the festival and for their fourth time.
Ms Morris said the walk in the forest was beautiful and it was nice to catch up with both local and international friends .
"The whole time walking I was talking to someone."
The walk through town was interesting and with geothermal points and lots of different things to see at different points in the walk, she said.