At that time, Círdan would abandon the Grey Havens and finally travel the Straight Road himself. On some unknown date, he sailed west aboard the Last Ship with his mighty kinsman Celeborn, but when he did so, he took with him the last living memory of the Elder Days in Middle-earth.
There is no last Elf in Middle-earth - there's still Elves here! Elves cannot live in Middle-earth indefinitely, embodied. Though the Three Rings helped keep them around and embodied, all Elves in Middle-earth were subject to fading, the loss of their corporeal bodies.
Gil-galad is a fictional character in J. R. R. Tolkien's Middle-earth legendarium, the last High King of the Noldor, one of the main divisions of Elves. He is mentioned in The Lord of the Rings, where the hobbit Sam Gamgee recites a fragment of a poem about him, and The Silmarillion.
No, Galadriel / Artanis was not the last surviving elf born in Aman. Her cousin and kinslayer, prince Maglor(1), was born in Valinor too, if you go strictly by the people who survived all ages of Middle-earth and did not die and subsequently go to Halls of Mandos.
There were still plenty of Elves after the parting of the Ringbearers. Legolas stayed in Middle-earth for at least another 120 years, for example, and Thranduil, if he ever sailed west, stayed even longer. Celeborn stayed for a while in Lórien before leaving to Rivendell, where the sons of Elrond still lived.
Aragorn is not half Elf, although he is a descendant of Elros, who is half Elf (and the brother of Elrond, the half-Elf who raised him), which explains why Aragorn's life span is unusually long.
The Elves felt compelled to leave Middle-earth because the Valar (deities of Tolkien's world) were spiritually summoning them to their ultimate destinies. The Valar saw the Elves as a race above the others, and thought that they would fare better if they lived in the Blessed Realm (also known as Aman) with the Valar.
Galadriel. One of the elves who lived in Middle Earth the longest was The Lady of Lothlorien, who arrived in the First Age and left in the Fourth. Galadriel's enigmatic abilities were tremendous, having learned magic from Valar and Maiar. All Middle Earth's races feared her, including men, dwarves, and Sauron's army.
In The Lord of the Rings, it is said that had Galadriel chosen to use her powers for evil instead of good, she would have been even more destructive and terrifying than Sauron himself. Galadriel was the greatest and most powerful of all Elves in Middle Earth in the Third Age.
Galadriel has very strong magical powers, and she is said to be the greatest of the Ñoldor after Fëanor. The majority of her powers come from her Ring of Power, Nenya, the Ring of Water.
Legolas does not marry or have any children, based on the appendix of The Lord of the Rings. Regardless of who his mother was, Legolas is the last of his line. When he sails into the West at the beginning of the Fourth Age, he leaves no family members behind.
It is later mentioned that Tauriel is a talented warrior and was therefore made leader of the Mirkwood border guards. Legolas, the son of Mirkwood's Elven king Thranduil, is indicated to be attracted to her, but as she is a lowly Silvan Elf, she does not believe herself worthy of him.
Haldir leads a regiment of Elven archers from Lórien to the Battle of Helm's Deep, where he is eventually slain, along with most of his archers.
His prowess with a bow was unmatched among the Fellowship and, as J.R.R. Tolkien stated himself, Legolas was “endowed with the tremendous vitality of Elvish bodies,” as well as an inability to feel terrible hurts, which made it easy for him to travel long distances over rough terrain in only light shoes.
The Tale of Aragorn and Arwen, an appendix to the main story, relates that Aragorn and Arwen had a son, Eldarion, and at least two unnamed daughters. One year after Aragorn's death, Arwen dies at the age of 2,901.
She was often called Arwen Undómiel or "Evenstar". In marrying Aragorn II Elessar after the War of the Ring, she became Queen of the Reunited Kingdom of Arnor and Gondor, and like Beren and Lúthien before her, she united Elf and Man in peace, while becoming mortal.
Nevertheless, Tolkien left clues that Bombadil is a Vala, a god of Middle-Earth, specifically Aulë, the archangelic demigod who created the dwarves. Robert Foster suggested in 1978 that Bombadil is one of the Maiar, angelic beings sent from Valinor.
Many Lord of the Rings fans also say Tom Bombadil is actually the most powerful character in all of Middle Earth, due to his apparent immortality, ability to completely resist the Ring, power over his domain, and knowledge that comes from living since the beginning of time.
There's no question that Sauron is among the most beings in Middle-earth, so powerful that even when defeated, he lay dormant and gathered strength in non-corporeal form, he poured his power and will into the One Ring so as long as it existed, he could never be truly defeated.
Arwen is described as the “most beautiful of the last generation of High Elves in Middle-earth,” and can summon powerful water spirits. She goes out of her way to always help those in need as well. One of the more important things she does is unite Elf and Man in peace again, like Beren and Lúthien before her.
Thranduil is a fictional character in J. R. R. Tolkien's Middle-earth legendarium. He first appears as a supporting character in The Hobbit, where he is simply known as the Elvenking, the ruler of the Elves who lived in the woodland realm of Mirkwood.
He will fight in the Last Battle against the Valar and their allies, but will ultimately be slain by Túrin Turambar, the Man he cursed. By finally defeating Morgoth, Túrin will avenge not only himself, but all members of the race of Men.
And after their marriage, both Aragorn and Arwen are mortal. Arwen, therefore, could not set foot in the Undying Lands without special permission. And she wouldn't be likely to go after it in the end. So unfortunately, she would not go there, unlike Legolas, after Aragorn's passing.
And Tolkein himself confirms this in his own private letters, where he makes it clear that Frodo and his friend Sam (who is also eventually granted a place in Valinor) would always be mere mortals and would eventually succumb to death even if they were to remain in The Undying Lands.
The Song of the Elves Represents Their Journey Home
This is represented on the soundtrack with Bear McCreary's original song “The Boat.” Galadriel can't join them because she feels that she has not served her purpose on Middle-earth. She would never be able to return if she entered the light of Valinor.