Booked a family day out kayaking at Garden Island for the Dolphin Sanctuary/Ship Graveyard at Garden Island. Had a great time and would recommend. Dolphins swam amongst us and it was fab to see them so close. Booked through www.adventure-kayak.com.au We were out for 3 hours and it cost $160 for 2 adults + 2 children. Kayaks/life jackets/guide included - just take along a drink/sunscreen/hat etc and have a bit of fun.