That is the island of Lana'i off in the background. Not to be confused with lanai, which is a porch here in Hawai'i. :~)
The sun is setting earlier and earlier every evening. When we first got here in July sunset was around 7:15 p.m. Just over a month later and it's setting around 6;55 p.m. I know that doesn't seem like much but 20 minutes in a month is a lot of light to loose.
I am looking forward to winter here though. No cold, no snow and the whales arrive!