Weather page: Check out the forecast before you go
http://www.bom.gov.au/
 

DECS has all the school and public holidays listed for SA and Interstate
http://www.decs.sa.gov.au/custserve/
 

This has all the public toilets listed: One of my essentials after my bottle of fine South Australian red wine
http://www.toiletmap.gov.au/
 

CFS: Always check if fire bans are applicable to your destination
http://www.cfs.org.au/