Bedrock
In geological context the fairly solid and rocky surface of the Earth is formally referred to as the "crust", distinct from the mantle beneath it.
Take a walk outside. Then you will be walking on the Earth's solid surface.
The earth's inner core is 3160 kilometers beneath the earths surface. The inner core is a solid ball of nickel-iron alloy.
It is said that the crust and the inner core are to be solid.
Water
== == This layer is called bedrock.
The solid water on Earth's surface consists of glaciers, ice caps, icebergs, and snow cover.
crust
Roughly 70% of the earths surface is covered by water.
The answer is Ireland. The "Ire" rhymes with fire and the solid part of the earth's surface is the "land".
Neptune does have a solid surface beneath its thick, thick atmosphere. You would fall through the visible surface (then fall 20% of the planets diameter) but would probably be able to stand on the solid surface beneath. ( Note, we do not know for sure because no direct measurements have been taken).
the earths crust is the nearest to the surface