Cloud calendars allow you to integrate all activities into your calendar app on your phone. This eliminates the beginning of the year effort to manually punch in all the details. Only specific calendar can be selected and subscribed to and these calendars can easily be hidden or shown as required. When you are done simply unsubscribe.

For step by step instructions please follow the following links:
Subscribing to a calendar
Find the calendar you want to subscribe to
Using the Calendar app and features
Getting directions directly from the event
Unsubscribing from a calendar
Steps to unsubscribe

Why Cloud Calendars are better?
Your calendar app can be used to keep your life organised, have a shared calendar managed by more than one person and follow events from schools, clubs etc. All the events can be viewed together on one interface which simplifies planning significantly.