If you want to 'subscribe' to this calendar then you should follow these instructions. This will allow you to check your normal calendar on your iphone/ipad/ipod and any notable HTJ dates will be there.
1- go to settings app
2- Select 'Mail, Contacts. Calendars' option
3- Select 'Add Account'.
4- from list choose 'Other'
5- Under 'calendars', select 'Add Subscribed calendar'.
6 - in 'server' box enter 'https://www.google.com/calendar/ical/admin@hebburntownjuniorsfc.co.uk/public/basic.ics'
7- put what you want in description, but set SSL to 'off'.
8- select 'next' and it should now have saved.
9- go into your iphone calendar and HTJ dates should be there.
If you have any issues let us know and we will try to help you.