Surprise and Amphitheater Lakes
What to Expect
Safety Advisory
The altitude is serious here — you're climbing from around six thousand feet to over nine thousand, and the sustained effort at elevation causes headaches, nausea, and dizziness in hikers who arrived from sea level that same day. Give yourself at least a day to acclimatize before attempting this one.
Snow lingers on the upper switchbacks and around both lakes well into July most years. Steep snow crossings without traction devices are how people get hurt here — if you see consolidated snow on the trail, turn around unless you have microspikes and know how to self-arrest.
Afternoon thunderstorms roll in fast during summer, and the upper portion of the trail is completely exposed above treeline. Check the forecast and plan to be descending by early afternoon.
Trail Details
Pro Tips
Hit the Lupine Meadows Trailhead by 7 AM at the latest in July and August — the small parking lot fills completely by mid-morning, and overflow parking adds a frustrating walk before you even start climbing.
The switchbacks are almost entirely exposed above treeline in the upper half, so carry more water than you think you need — at least three liters per person — and pack sun protection that actually works at nine thousand feet where UV is no joke.
Don't stop at Surprise Lake and call it done. The extra quarter mile to Amphitheater Lake is steeper but short, and the setting beneath Disappointment Peak is dramatically more impressive — plus the crowds thin out significantly because plenty of hikers turn around at Surprise.
Photos
NPS Photo/A. Falgoust