For further information, please email us at Sheratontravel.00377@starwoodhotels.com or call us at (808) 931-8072 Monday thru Friday from 8:30 a.m. until 5:00 p.m. Hawaii time and at (808) 931-8007 on weekends during the same hours.  To pre book any activities, please notify us by email and we will immediately email  you a reservation/credit card authorization form.  Upon receipt of your completed form (via email or fax) we will email you a confirmation.