Best and cheapest way to see St Johns caves and is there free buses in Halifax?

I would like to see the reverse rapids, isit walking distance from pier? how do i find out the times it changes?

I also want to visit St Johns, most practical cheaper way? What about a hop on hop off to see halifax? what company?

thank you

The HOHO in Halifax is far from free: https://www.mtcw.ca/historic-tours

http://hohohalifax.ca/ You can walk to most of the places they go and take a city bus or taxi to the Titanic Graves at Fairview Lawn Cemetery is that is of interest to you.

We just did St John and walked to the rapids. It takes about 45 mins at a brisk walk (and we were doing it in a gale!). Just follow the edge of the harbour along the red 'Harbor Passage'.It will take you to an observation platform by the bridges. Then walk down the steps off the platform and under the road bridge and over the train track and along Douglas Ave, then left down Fallsview Ave to more lookout points. This takes another 15mins. There are restrooms there too. Come back up Fallsview Ave and turn left (carrying on along Douglas Ave) to the lights and turn right down Bentley St (which used to be the old portage route round the falls), then you are back to the Harbor Passage. The whole thing is about a 4 1/2 mile round trip and we did it in 2 1/2 hours easily (including 'looking' time). The falls flow fastest halfway between high and low tide, so google the tide tables for the date of your trip.

Simon