Sameh, If you are staying in Noosa itself there are heaps of options. However at that time of year it can be very expensive. If you stay around Peregian or Coolum you will find it a bit cheaper and it is only fifteen minutes to Noosa Heads.
If you want to hire a SUP in Noosa try these:-
1. Stand up Paddle Surf Australia. Based at Noosaville and have web page.
2. Kitesurf Adventure Sports. As above.
3. Noosa Stand Up Paddle. At the Lions Park at Noosa Heads and have web page.
If you are hiring a 4WD and want to access the North Shore and Double Island Point I would check carefully with the hire company as the Major Companies like Avis don't allow you to take them up the beach. There are other low key companies that do allow beach access.
No matter where you stay there are heaps of surf options. The beach from Sunshine Beach to Coolum is 20km long with heaps of access. Coolum has numerous places. Then there is Yaroomba to Maroochy North Shore. In a southerly and with the right swell there is the fabulous Noosa Points. But be prepared for the hordes of people. There can be as many as two hundred people on a good day.
Having a 4WD will give you access to the Noosa North Shore. There are waves on the lower North Shore near the rivermouth. Then you have Double Island Point south side and the long sand bar on the North side. Heaps of places and heaps of fun.
If you need more info let me know. Cheers.
ET.