Donna was excellent! Our trip was the day after Tropical Storm Darby hit Oahu which meant we were unable to hike to the waterfalls. Donna organised an alternative schedule including a tour of East Oahu, the Makapu'u Lookout, shaved ice at Keneke's (excellent!), and then lunch from Leihi Health in Kailua (fantastic veggie tacos to go) finishing up on Lanikai beach and then the Pali lookout. Donna was a great guide throughout, really knowledgeable and great company - we couldn't have a better trip. Thanks!