If you've already visited a SharePoint site, you may visit the SharePoint homepage and directly select the site from your list of "Recent" or "Following" (starred) sites.
If you are visiting a SharePoint site for the first time, you have two options. If you know the name of the Department site or other group, you may visit the site directly:
https://duluthymca.sharepoint.com/sites/SITENAME
Alternatively, you may check which Department/Other Groups you are in that have SharePoint sites by going to Outlook (web) > select "People" > Under Groups, select either "Member" or "Owner" > choose a Group > under Apps, see if "Site" is listed. You may select "Site" to access the SharePoint site.
If a site isn't listed under Member/Owner, you may need to view the site under "Directory" > "All Groups". Alternatively, feel free to reach out to Tech Help for assistance!