Lake Winnepesaukah has the oldest ride of what type, which finishes with a climactic splashdown?
old mill
Lake Winnepesaukah
Lake Winnepesaukah, commonly known as Lake Winnie, is an amusement park located in Rossville, Georgia, just south of Chattanooga, Tennessee.
 Carl and Minette Dixon opened the park to over 5,000 guests on June 1, 1925.
 They named it after the Native American word "Winnepesaukah", meaning “bountiful waters” or “beautiful lake of the highlands”.
 The park originally featured the largest swimming pool in the southeastern United States, which debuted in 1926 and was later removed.
 Its Boat Chute attraction, designed by Carl Dixon, opened in 1927 and is the oldest mill chute water ride of its kind still in operation in the United States.
Old Mill (ride)
An old mill is a type of amusement park ride with unaccompanied boats floated on guideways through dark tunnels.
 These themed dark rides originated in the late 19th century and are known by a variety of names, including tunnel of love and river cave.
 While generally considered a gentle ride, a variation that ends with a climactic splashdown, similar to the modern-day log flume, is known as a mill chute.
Rumba Rapids
Rumba Rapids is a rapids ride at Thorpe Park, Chertsey, Surrey.
 It opened in 1987 under the name of Thunder River, and is the oldest ride currently still in service at Thorpe Park.
 In 2002, it was refurbished and along with other improvements, its name was changed to Ribena Rumba Rapids because of its sponsor, Ribena.
 In 2006 Ribena's sponsorship contract ended and the ride was named simply Rumba Rapids for the 2007 season.
 Since the refurbishment in 2002 the ride has become significantly slower. Corkscrew (Alton Towers)
Corkscrew was a steel roller coaster manufactured by Dutch company Vekoma to a design by Arrow Dynamics.
 The coaster was located in the Ug Land area of Alton Towers in Staffordshire, England.
 It was the park's oldest ride and is considered the greatest factor in promoting the new theme park to the British public.
 It was one of the first double-inverting coasters in Europe (the first in the UK), so it received much publicity and avid popularity in the 1980s.
 Waiting times for the ride frequently reached 6–9 hours during the first few months of operation at Alton Towers, and the park would often be forced to close early as it found itself swamped with visitors long before the evening ever came. Splashdown (log flume)
Splashdown is a log flume located at Castles N' Coasters, a theme park in Phoenix, Arizona.
 It is noted for its two drops, as well as many other special features.
 The whole ride is themed after a logging expedition through Polynesia.
 Splashdown is also known for narrowly being dodged by the nearby Desert Storm roller coaster. Backlot Stunt Coaster
Backlot Stunt Coaster (formerly known as Italian Job: Stunt Track at two locations and Italian Job: Turbo Coaster at another) is a launched roller coaster located at three amusement parks – Canada's Wonderland, Kings Dominion and Kings Island.
 All three were themed to the climatic chase scene at the end of the 2003 film, "The Italian Job".
 Special effects were incorporated throughout the ride to reproduce the scene including a helicopter that fires a simulated machine gun at riders, a pyrotechnic display, and a simulated splashdown water effect featured on the ride's final drop.
 Some of the effects were removed in later years following the removal of the "Italian Job" theme. Bike MS: City to Shore Ride
The Bike MS: City to Shore Ride is 1 or 2–day ride held in South Jersey.
 The ride starts at the PATCO Woodcrest Station in Cherry Hill and finishes at the Ocean City High School in Ocean City, New Jersey.
 Riders also have the option to start in Hammonton or Mays Landing, New Jersey.
 The ride's purpose is to raise money for multiple sclerosis, a chronic disease that affects the central nervous system. Splash Mountain
Splash Mountain is a log flume dark ride at Disneyland, Tokyo Disneyland, and the Magic Kingdom at the Walt Disney World Resort, based on the characters, stories, and songs from the 1946 Disney film "Song of the South".
 Although there are variations in the story and features between the three locations, each installation begins with a peaceful outdoor float-through that leads to indoor dark ride segments, with a climactic steep drop into a "briar patch" followed by an indoor finale.
 The drop is 50 ft . Cannon Ball (roller coaster)
Cannon Ball is a wooden roller coaster at Lake Winnepesaukah amusement park.
 Designed by John C. Allen and built by Philadelphia Toboggan Company (today called Philadelphia Toboggan Coasters), the roller coaster opened in 1967 and quickly became one of the signature attractions at the park.
 It is one of four roller coasters at the park. L.A.T.E. Ride
The L.A.T.E. Ride is an annual, non-competitive, mass bike ride through the streets of Chicago, Illinois, United States.
 It has historically started about 1:00 am (but started at midnight in 2010) and finishes at about sunrise.
 It is a charity ride benefiting Friends of the Parks, a not-for-profit parks advocacy group in Chicago.
 The event's title is a backronym, Long After Twilight Ends.
 The Ride's director from its inception in 1989 until 2012 was Nancy Minster Swabb.