I think the first time I really started to notice the ocean rising in height was on Maui in 2019. The road from Kihei to Lahaina would wash over with waves breaking on my car sometimes when I drove the lower route. However, the islanders built a higher road to solve this problem at a greater altitude. The one thing you have with the Hawaiian Islands is that especially on the Big Island of Hawaii you have heights up to over 14,000 feet which might surprise a lot of people who haven't been there. Even on Maui you have heights up to 10,000 feet or more on Haleakala Crater's edge and it snows there sometimes in the winters at this altitude and people can ski sometimes on Mauna Kea on the Big Island too if they want to. All this might surprise people who haven't been there before.
However, then there is the other side which is places like Lahaina (now burned down mostly) and Kaanapali (near to Lahaina a little north) where I stayed a year ago overlooking the Island of Lanai and amazing sunsets from our 5th floor room then too. But, if you walk along the beach walks there you see Palm Trees that were once on land now half into the ocean with their roots exposed to salt water and storms which isn't helping them much and some of those trees dying from too much salt water to along the coasts of various islands in the Hawaiian chain. So, it's only right along the coasts of the islands of Hawaii where this is becoming more of a problem yearly and coastal resorts might eventually have some of their 1st floor rooms going underwater during some winter storms or extreme high tides. You have the same problem in Miami where at high tides and storms many roads there are underwater and some parts of some homes too that are too near the ocean.
Then you have many pacific islands that are only 1 to 5 feet above the ocean anyway going more and more underwater and many people over the last 20 years or so have lost their islands completely to the water and had to move elsewhere or drown (one of the two).
It's true that 11,000 years ago sea level was 400 feet lower than it presently is and then people could basically walk where the Aleutian island chain is from Asia to Alaska in addition to sailing here on ships from Asia or the Pacific Islands.
Then there is the Coast of California where I live and watching 15 Atmospheric rivers tear up the coastline where I live nearer to San Francisco. First the winds peeled back the ice plant which holds the earth near the ocean. Then the rains washed away the soil leaving only the Sandstone cliff of 5 to 10 feet high. The beaches often completely washed away leaving only rocks in the wintertime and often roads near the ocean that were paved were undermined by the winter storm surf as well. This has changed a lot of things like wooden picnic tables washed away or destroyed completely up and down the California coast, rocks from 50 to 200 pounds thrown up from the ocean storms sometimes several hundred feet onto paved roads or through wooden fences and trees and logs often doing the same. So, it's true the ocean is rising and since basically all the oceans of the world are connected (if you look at a map) this is basically happening everywhere there is an ocean on earth.
This is the reality of what people who live on the oceans anywhere on earth are basically experiencing ongoing right now.
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