I visited Tiwai Island on a Lupine Travels tour in June 2023. The intent was to stay overnight at a community center dormitory in the middle of the island. Rugged road going in. Vehicle was parked and local guides loaded our luggage onto small boats. We drifted downriver about ten minutes before banking on the opposite shore. We  followed a short trail to the center where we had dinner, were entertained by locals doing traditional dances and a role play involving a demon. The next morning a guide took us through island trails. The jungle was dense. Most impressive vegetation were the banyan trees. We didn’t see any animals other than a large impressive spider, but there were plenty of birds.