The highest tides in the world occur in the Bay of Fundy in Nova Scotia, Canada. 

• The tidal bulge is 15 – 16 m. Because there are two high tides and two low tides every day (roughly a 24-hour period); then a tide must come in within about a six-hour period.  
• As a rough estimate, the tide rises about 240 cm an hour (1,440 cm divided by 6 hours). 

Source: NCERT – XI Fundamentals of Physical Geography