Head over to your Reminders tab in your SaneBox Dashboard.
Towards the bottom of the page, you'll see a link called iCal Feed.
1. Copy the link.
2. In the Calendar program, choose "New Calendar Subscription".
3. Paste the copied URL (from step 1) into Calendar URL field and click Subscribe.
4. Change the name and update the Auto-refresh frequency to Every day and click OK.
5. Now under the Calendars in iCal you can select the newly created calendar and view your upcoming SaneReminders.