Goryokaku Star Fort — Sakura Viewing Tower

**Sakura timing:** Cherry blossoms bloom late April to early May (peak dates vary annually by ±5 days). Check Hakodate Tourism's bloom forecast in mid-April. Peak bloom lasts 5-7 days. The tower view is essential for appreciating the star shape — ground-level views don't reveal the geometry. Arrive early morning (8:00) or late afternoon (16:00-17:00) for softer light and smaller crowds. **Tower vs. ground:** Goryokaku Tower (¥900) offers the iconic aerial view and historical exhibits on two floors. The observatory is 90 meters high with 360° views including Mt. Hakodate and Tsugaru Strait. Ground-level park walking (free) allows strolling beneath cherry trees and along the moat — both perspectives are worth experiencing. Budget 2 hours for tower + park walk. **Historical exhibits:** The tower's exhibit floors display Goryokaku's military history, the Boshin War's final battle, and Hakodate's role in Meiji Restoration. English signage is available. The fort's Magistrate's Office (箱館奉行所, ¥500, inside the park) is a reconstructed administrative building from 1864, with period rooms and exhibits. **Off-season appeal:** Cherry season is glorious but crowded. Winter (December-February) offers a different beauty — the star shape is visible in snow cover, and the park is nearly empty. The tower hosts winter illumination events (December-February, evenings) when the fort is lit with colored lights.