Biwako Otsu Prince Hotel (4-7-7 Niohama, Otsu City, Shiga Prefecture) is offering a one-night-only stay plan on Saturday, June 20, 2026, centered on fireworks launched over Lake Biwa. Guests can enjoy dinner at one of four on-site restaurants, each featuring Omi beef — one of Japan's three great wagyu — in dishes specially crafted for the occasion, followed by fireworks viewed from the poolside.

Event Highlights
Fireworks Viewing Over Lake Biwa
Fireworks in shades of green and blue, evoking early summer on the lake, will be launched over Lake Biwa. The display reflects off the water's surface, creating a vivid contrast against the night sky. Guests dine first, then move to the poolside to watch the fireworks after their meal. In case of rain, viewing takes place in Prince Hall Foyer (3F).
Special Omi Beef Dinners
Chefs across all four hotel restaurants have developed menus exclusive to this event, placing Omi beef at the center. Each restaurant offers a distinct take on the ingredient, from kaiseki multi-course meals to Chinese-style preparations and Western-style buffets.
Stay Plan Overview
Date: Saturday, June 20, 2026
Room Rates (per person):
- Dinner & Breakfast Included: from ¥21,760
- Breakfast Included: from ¥13,950
- Room Only: from ¥10,800
Rates include one night's accommodation, dinner (for dinner & breakfast plan), breakfast, consumption tax, and service charge (based on 4 guests per room).
Reservations: https://www.princehotels.co.jp/otsu/informations/early-summer-fireworks2026_sty
Dinner venues for the dinner & breakfast plan are: Lake View Dining Biona (37F), Shimizu Japanese Restaurant (36F), Li Fang Chinese Restaurant (1F), and Lobby Lounge Port Nio (1F).
Dinner Menus
Shimizu Japanese Restaurant (36F) — Scenic Kaiseki

A kaiseki course centered on Omi beef, featuring a side-by-side tasting of loin and shoulder-loin sushi, grilled with Japanese tea. The meal pairs well with local sake and is designed to highlight the flavors of Shiga Prefecture.
Menu:
- Starter: Matcha egg tofu, blanched conger eel, red konjac
- Sashimi: Simmered conger eel, thinly sliced sea bream
- Small Bowl: Omi beef rice steamed, brown rice tea sauce
- Grilled Dish: Omi beef loin roasted with tea
- Rice Course: Omi beef aburi nigiri tasting (two cuts)
- Soup: Red miso
- Dessert: Daigo-mochi in Rikyu style with matcha sauce and seasonal fruit
Li Fang Chinese Restaurant (1F) — Scenic Harmony

The main course features Omi beef steak finished with a rich, house-made black bean sauce that brings depth and a clean spice to the tender beef. The full menu reflects the restaurant's Chinese culinary approach.
Menu:
- Assorted appetizers
- Cold soup of shark fin and potato
- Omi chicken in sesame sauce
- Omi beef steak with Li Fang house-made sauce
- Steamed seasonal vegetables
- Crab meat fried rice
- Almond tofu
Fireworks are viewed from the poolside after dinner. In case of rain, viewing is in Prince Hall Foyer (3F).
Lake View Dining Biona (37F) — Omi Beef Sirloin Steak & Grilled Vegetables

As a plan-exclusive dish, guests receive one serving of Omi beef sirloin steak seasoned with "Biwako no Shizuku," a Shiga Prefecture soy sauce. Alongside this, the restaurant's "Omi Beef and Lake Country Blessings Dinner Buffet" offers a broad selection featuring Omi beef, Omi chicken, and Zo-o pork, as well as early summer ingredients.
Sample Buffet Items:
- Omi beef and Zo-o pork Shiga-style junjyun hot pot
- Slow-roasted beef with three sauces
- Omi chicken roasted in the oven with colorful vegetables and Sichuan sauce
- Smoked duck roulade with marinated colorful vegetables
Lobby Lounge Port Nio (1F) — Omi Beef Hamburger One-Plate Dish

In the open lobby lounge, guests enjoy an Omi beef hamburger plate with a bright tomato sauce that complements the rich meat. The set concludes with a choice of dessert from six options prepared by the hotel's pastissier.
Menu:
- Welcome drink
- Omi beef hamburger one-plate dish
- Choice of wagon dessert (select freely from 6 types)
- Coffee or tea
Fireworks are viewed from the poolside after dinner. In case of rain, viewing is in Prince Hall Foyer (3F).
Menu ingredients may change depending on availability. All information is current as of April 2026 and is subject to change. The hotel accommodates food allergies for 8 designated allergens (shrimp, crab, walnuts, wheat, buckwheat, eggs, dairy, peanuts) upon prior request. Window-side seating cannot be guaranteed during busy periods. All images are for reference only.