Lagunasia Pool Opens Saturday, June 20

Published: May 13, 2026
Lagunasia Pool Opens Saturday, June 20

The summer pool at Lagunasia, a theme park in Gamagori, Aichi Prefecture, is set to open on Saturday, June 20.

The lineup includes a variety of pools: the kids' area "Kujira-san's Splash Garden," which debuted last year; the wave pool "Joia Mare no Hamabe," featuring waves that reach up to 1 meter in height; and the 230-meter lazy river "Ouroboros River." Special seasonal activities such as the foam event "Awa-awa Pool," the exciting "Big Wave Time," and a selection of float rentals are also on offer. Entertainment shows featuring in-water dancing and fountain displays are held throughout the season.

Day Pool: Overview

Period: Saturdays and Sundays from June 20 (Sat) to June 28 (Sun); daily from July 4 (Sat) to September 23 (Wed/Holiday); September 26 (Sat) and 27 (Sun)

Admission:

  • Adults (middle school age and above): from ¥3,500
  • Elementary school students: from ¥1,900
  • Young children (age 3 and above): from ¥1,400

Prices vary by date and ticket type. Please check the official website for details.

Height/Age Restrictions:

  • Water slide "Zeus no Inazuma": Height 120 cm or above only
  • "Kujira Slider" inside "Kujira-san's Splash Garden": Height 90 cm or above recommended

Other restrictions vary by pool. Please check the official website or on-site for details.

Official Website: https://www.lagunatenbosch.co.jp/event/summer/pool/index.html

Day Pool Details

The kids' pool area "Kujira-san's Splash Garden," which debuted last year, features a shallow zone (water depth 13–30 cm) suitable for young children using a pool for the first time, as well as a kids' zone (water depth 60 cm) packed with interactive play equipment. At the center stands a large dome-shaped slide, "Kujira-san's Slider," approximately 9 meters in diameter and 2 meters tall, complete with a fountain designed to resemble a spouting whale. Visitors can climb and slide down it. Other highlights include the wave pool "Joia Mare no Hamabe," with waves reaching up to 1 meter high, and the 230-meter lazy river "Ouroboros River."

Kujira-san's Splash Garden

A kids' pool area with various marine-life-themed features.

Joia Mare no Hamabe

One of Japan's largest wave pools, with waves reaching up to 1 meter high.

Luna Port

The center pool where guests can enjoy entertainment shows up close.

Ouroboros River

A 230-meter lazy river.

Zeus no Inazuma

A water slide that descends from a temple ruin structure approximately 15 meters above ground.

Seirene no Izumi

A heated jacuzzi for warming up after a swim.

Throughout the season, the popular foam event "Awa-awa Pool," the thrilling "Big Wave Time," and a range of float rentals are available. Entertainment shows unique to Lagunasia — featuring in-water dancing and fountain displays — are held during the season as well.

Awa-awa Pool (Foam Pool)

Period: Weekends and public holidays during pool operating dates; daily from July 18 (Sat) to August 30 (Sun)

Times: 12:05 PM, 2:05 PM, 8:00 PM (Night Pool dates only)

Location: Ouroboros River — Central Island Area

May be cancelled in the event of rain or strong winds.

Big Wave Time (approx. 7 minutes)

Period: Weekends and public holidays during pool operating dates; daily from July 18 (Sat) to August 30 (Sun)

Times: 12:30 PM, 2:30 PM (10:30 AM added on days when Lagunasia opens at 9:30 AM)

Location: Joia Mare no Hamabe

Areas deeper than 1.1 m are limited to middle school students and above.

Only single-seat floats are permitted in areas deeper than 1.1 m.

Float Free Pass

Period: Available on all pool operating dates

Prices:

  • Daytime Float Free Pass: ¥1,600 (¥1,000 on weekdays through July 17 (Fri) and weekdays from August 31 (Mon) to September 18 (Fri))
  • Evening Float Free Pass: ¥1,300

Pickup Locations:

  • Daytime: Rental Shop
  • Evening: Paid Seating Sales Counter / Pool Shop
  • Exchange: In front of the Rental Shop near Luna Port

One free pass allows borrowing one item at a time.

Splash Aqua-cise

Description: A pool activity featuring in-water dancing. Guests can enjoy water aerobics while being splashed by summer sun and fountain water.

Period: July 11 (Sat), 12 (Sun), and July 18 (Sat) to August 30 (Sun)

Duration: Approximately 15 minutes (times vary by day)

Please check the show schedule on the official website for specific times.

In the event of rain, some show elements may be changed.

Splash Fountain

Description: A fountain show synchronized with music, with various fountains shooting up to the beat. Guests can enjoy being drenched in the splashing water.

Period: Available on all pool operating dates

Duration: Approximately 4 minutes (times vary by day)

Please check the show schedule on the official website for specific times.


Information may change without notice due to weather or other circumstances. Please check the official website or on-site for the latest details. All prices include tax. Images are for illustrative purposes only.