Things To Do
Exploring the Arroyo Seco
From Hahamongna to the Lower Arroyo on foot.
By PasadenaCalifornia.com Editors · Published March 11, 2026 · 8 min read
The canyon that shaped the city's western edge, and how to walk its length.
This guide is assembled from the same underlying records that power the rest of the site — the neighborhood profiles, the directory listings and the attraction pages linked below. Rather than repeat that material here, the sections that follow point you to it in the order that makes sense on the ground.
Details change: hours, menus, ticketing and access are all worth confirming with the venue before you plan around them. Where an official source exists, we link to it directly.
Places in this guide
Outdoor Activities
Arroyo Seco
The seasonal canyon that runs the length of west Pasadena, with trails from Hahamongna to the Lower Arroyo.
Architecture
Colorado Street Bridge
The 1913 concrete arch bridge spanning the Arroyo Seco, a National Register landmark.
Sports
Rose Bowl Stadium
The 1922 National Historic Landmark stadium in the Arroyo Seco, home of the Rose Bowl Game and a 3.1-mile public loop.
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