To adjust the default view of the public calendar link you can pass through URL parameters. Below are a few examples that you can do to change the default view of your public-facing calendar. To learn how to embed your calendar and remove the frame around it look at this Embedding Landing Pages Article.
The default public calendar view is the week view
https://yourgymname.pushpress.com/open/calendar?framed=0
Weekly List View
https://yourgymname.pushpress.com/open/calendar?view=week&type=list
Daily Agenda View
https://yourgymname.pushpress.com/open/calendar?view=day&type=agenda
Daily List View
https://yourgymname.pushpress.com/open/calendar?view=day&type=list
Monthly List View
https://yourgymname.pushpress.com/open/calendar?view=month&type=list
Monthly Agenda View
https://yourgymname.pushpress.com/open/calendar?view=month&type=agenda