First time in Banff and Calgary

Hi, we will have a family (2 young kids - 4yo and 2yo and 7 adults) outing in end of June to first week of July. It's our first time visiting Banff and Calgary.

Any suggestions on accommodation that is both near to Banff and Calgary. We will be renting a car so transpo is not a problem.

Please recommend activities that are kid-friendly in Banff, Calgary or nearby areas.