The roof's unique suspension design was engineered to provide a vast, column-free interior space for clear sightlines.
It served as the primary venue for both the men's and women's ice hockey tournaments during the 1998 Winter Games.
The structure is designed to function as an indoor skating rink in the winter and a multipurpose event floor during the rest of the year.
Its construction was part of a larger urban development plan to modernize Nagano's sports infrastructure ahead of the Olympic bid.
Big Hat is a prominent multipurpose arena in Nagano City, originally constructed to host ice hockey events during the 1998 Winter Olympics. The facility is named for its distinctive roof design, which resembles a wide-brimmed hat. It serves as a primary venue for regional sports competitions, major concerts, and large-scale trade exhibitions. The arena features a flexible floor configuration that allows for the installation of an ice rink during winter months. Its main hall can accommodate several thousand spectators, making it the largest indoor event space in the immediate vicinity. The building remains a landmark of post-Olympic architectural development in the Wakasato district.
The plaza area directly in front of the main entrance captures the unique roof architecture and the facility's scale.
Check the official event calendar online before visiting, as the venue is frequently closed to the public during private events.
Parking capacity is limited during major events; consider using regional public infrastructure for access.
Wear layers if attending winter events, as the temperature inside the arena is kept cool for ice maintenance.
Do not attempt to enter the facility on days when no public events are scheduled, as the perimeter is often secured.
Closed to the general public during private rentals, concerts, and professional sporting events; check the official website for real-time availability.
Strictly follow seating assignments during ticketed events and refrain from flash photography near performers or athletes.