Question: What was a popular amusement park that lies on the coastline of the Pacific Ocean?

Context paragraphs:
Lake Compounce: Lake Compounce is an amusement park located in Bristol and Southington, Connecticut; the lake itself lies completely in Southington.  Opened in 1846, it is the oldest continuously-operating amusement park in the United States.  The amusement park covers 332 acres (1.3 km²) of land, and also has a beach and a waterpark which can be used by guests for no extra charge.  The park was acquired from Kennywood Entertainment Company by Palace Entertainment, the U.S. subsidiary of Parques Reunidos.  In addition to the title for oldest consecutively run amusement park in the United States, it also has 14th oldest wooden roller coaster in the world, Wildcat.  Its other, newer wooden roller coaster, Boulder Dash, has won the Golden Ticket Award for the #1 Wooden Coaster in the World for 5 years, and held that record from 2013 to 2016.

Lotus Isle: Lotus Isle Amusement Park was an amusement park that opened on June 28, 1930, in Portland, Oregon, just off the east tip of Hayden Island on the Columbia River.  Known as the "Wonderland of the Pacific Northwest," Lotus Isle was located just east of the more successful Jantzen Beach amusement park.  Lotus Isle spread out over 128 acre and at the time was Portland's largest amusement park.

Oregon: Oregon ( ) is a state in the Pacific Northwest region on the West coast of the United States.  The Columbia River delineates much of Oregon's northern boundary along Washington state, while the Snake River delineates much of its eastern boundary along Idaho.  The parallel 42° north delineates the southern boundary with California and Nevada.  Oregon is one of only three states of the contiguous United States to have a coastline on the Pacific Ocean.

Sunnyside Amusement Park: Sunnyside Amusement Park (also known as Sunnyside Beach Park) was a popular amusement park in Toronto, Ontario, Canada that ran from 1922 to 1955, demolished in 1955 to facilitate the building of the Metro Toronto Gardiner Expressway project.  It was located on the Lake Ontario waterfront at the foot of Roncesvalles Avenue, west of downtown Toronto.

Jolly Roger Amusement Park: Jolly Roger Amusement Park is an amusement park located in Ocean City, Maryland.  The park features two locations in Ocean City; one at the pier, and one further uptown at 30th Street.  The 30th Street location features a carnival-type amusement park with multiple rides and attractions, along with two eighteen hole mini-golf courses.  The 30th Street venue also houses Splash Mountain, a full-service waterpark with many slides and activity pools, along with 10 go-kart tracks.  The main park opened in July 1964 and the pier location was purchased by Jolly Roger in 1974.

Wild Waves Theme Park: Wild Waves Theme & Water Park is an amusement park and water park in Federal Way, Washington.  Opened in 1977 as The Enchanted Village, the park is a popular summer destination in the Pacific Northwest and it is Washington's only water and amusement park.  The park's name was reverted to Wild Waves Water Park and Enchanted Village Amusement Park in April 2016, and once again changed to Wild Waves Theme and Water Park in November 2016, as a result of the park's acquisition by EPR Properties.

Tokyo Dome City Attractions: Tokyo Dome City Attractions (東京ドームシティアトラクションズ ) is an amusement park located next to the Tokyo Dome in Bunkyō, Tokyo, Japan, and forms a part of the Tokyo Dome City entertainment complex.  It opened in 1958, and was formerly known as Kōrakuen (後楽園ゆうえんち ) until April 2003.  It was one of the most popular amusement parks in Tokyo.  Rides include the "Big O" Ferris wheel and "Thunder Dolphin" roller coaster.

Lakeside Amusement Park: Lakeside Amusement Park is a family-owned amusement park in Lakeside, Colorado adjacent to Denver.  Originally named White City, it was opened in 1908 as a popular amusement resort adjacent to Lake Rhoda spearheaded by prominent Denver brewer Adolph Zang.  Eventually the name was changed to Lakeside Amusement Park, but the local populace kept referring to it by its original name for its glittering original display of over 100,000 lights.  Today it is one of the oldest amusement parks in the United States, and the oldest still running in Colorado.  The park, comprising nearly half of the Town of Lakeside that it was responsible for creating in 1907, features the landmark Tower of Jewels.

Jantzen Beach Amusement Park: Jantzen Beach Amusement Park was a popular amusement park from 1928 to 1970 in Portland, Oregon, on Hayden Island in the middle of the Columbia River. " "The Coney Island of the West"" opened on May 26, 1928 as the largest amusement park in the nation, covering over 123 acre at the northern tip of Portland.

Särkänniemi: Särkänniemi is an amusement park in Tampere, Finland.  The park features an aquarium, a planetarium, a children's zoo, an art museum, an observation tower Näsinneula (Näsi Needle).  Särkänniemi is the most popular amusement park in Finland with Linnanmäki in Helsinki.  Särkänniemi has five, 6th under construction rollercoasters: inverted coaster Tornado, flying coaster Trombi, MotoGee, Half Pipe and Hype, a launched steel coaster Sky Rocket II opening in summer 2017, and family coaster Vauhtimato ("Whirly Worm").  Särkänniemi is owned by the city of Tampere and attracts about 1.100.000 visitors per annum.  Särkänniemi is the biggest rival for Linnanmäki as the lead amusement park in Finland.  Both are about the same size.

Supporting paragraphs: Jantzen Beach Amusement Park Oregon
Answer: Oregon