It's about as big as Coron Island
It's about seven-tenths as big as Disney World
In other words, 18,000 acres is 0.721 times the size of Disney World, and the size of Disney World is 1.39 times that amount.(a.k.a. Walk Disney World Resort, a.k.a. Walt Disney World, a.k.a. WDW) (Lake Buena Vista and Bay Lake, Florida) (total site)
Disney World currently occupies 25,000 acres. Part of the former total area of 29,700 acres now comprises the Disney planned community of Celebration, Florida.
It's about two-thirds as big as Hilton Head
In other words, 18,000 acres is 0.669135 times the size of Hilton Head, and the size of Hilton Head is 1.49447 times that amount.(a.k.a. Hilton Head Island) (South Carolina)
Hilton Head Island measures 26,899.90 acres in total land area. The island (and city of the same name) is located in the Atlantic Ocean and is known as popular vacation destination.
It's about two-and-a-half times as big as Inis Mór
In other words, 18,000 acres is 2.3 times the size of Inis Mór, and the size of Inis Mór is 0.43 times that amount.(a.k.a. Inishmore, a.k.a. Árainn Mhór, a.k.a. Inis Bant, a.k.a. Árainn na Naomh) (Connacht, Ireland)
The largest of the Aran Islands, Inis Mór measures 7,700 acres. The west side of the island is home to the Poll na bPéist, a.k.a. the wormhole, a naturally-formed, 0.072 acres, rectangular pool on the island's cliffside.
It's about two-fifths as big as Washington, D.C.
In other words, 18,000 acres is 0.412 times the size of Washington, D.C., and the size of Washington, D.C. is 2.43 times that amount.(formally the District of Columbia, a.k.a. Washington, a.k.a. the District, a.k.a. DC) (United State)
The United States' capital and only federal district, Washington, D.C. is a 43,700 acres area located between the states of Virginia and Maryland. Washington, D.C. is known as the center of each of the three branches of the United States federal government and as home to many of the nation's monuments, museums, and foreign embassies.
It's about one-third as big as Abel Tasman National Park
In other words, 18,000 acres is 0.3233 times the size of Abel Tasman National Park, and the size of Abel Tasman National Park is 3.09 times that amount.(Tasman District, South Island, New Zealand)
New Zealand's Abel Tasman National Park measures about 55,670 acres in total area. The size of the park has increased over the years as donated parcels of land have been added to it, with the last expansion in 2008 adding 1,952 acres.
It's about three-and-a-half times as big as Indira Gandhi International Airport (DEL)
In other words, 18,000 acres is 3.526 times the size of Indira Gandhi International Airport (DEL), and the size of Indira Gandhi International Airport (DEL) is 0.2836 times that amount.(Palam, Delhi, India) (total site area)
Indira Gandhi International Airport covers a total area of about 5,105 acres, including three main terminals and three main runways. The airport offers a total runway length of 11,053 m.