Mark S.May 30, 2026
5/10
★★★★★
Incredible hike. The cables are terrifying but if you take your time and bring good gloves it is completely worth the view from the top.
95 found helpful
PATH_REGISTRY_ID: YOSEMITE-HALF-DOME
Half Dome Trail
Yosemite's most challenging day hike, ascending the steep cables to the top of the iconic dome.
>>> ACCESS_IMAGE_STREAM: SYSTEM_FEED_ENCRYPTED_SECURE_MODE
SAFETY: 6/10
FAMILY: 1/10
OVERALL: 5/10
// NATURAL_HAZARD_CONTEXT
5 NEARBY
Recent natural-hazard signals within 150 KM of this trail. Review the source before making plans.
// REALTIME_SYSTEM_TELEMETRY
🌤 WEATHER_NOAA
TONIGHT
TEMP: 62°F · WIND: 0 to 5 mph E
FORECAST: Clear
WEDNESDAY
TEMP: 82°F · WIND: 0 to 10 mph SSE
FORECAST: Sunny
WEDNESDAY NIGHT
TEMP: 64°F · WIND: 0 to 10 mph E
FORECAST: Clear
THURSDAY
TEMP: 83°F · WIND: 0 to 10 mph N
FORECAST: Sunny
THURSDAY NIGHT
TEMP: 66°F · WIND: 0 to 10 mph NW
FORECAST: Mostly Clear
FRIDAY
TEMP: 84°F · WIND: 0 to 10 mph NNW
FORECAST: Sunny
💨 ATMOSPHERIC_AQI
34 GOOD
| PARAM | AQI | CAT |
|---|---|---|
| PM2.5 | 28 | 1 |
| O3 | 34 | 1 |
| PM10 | 12 | 1 |
| NO2 | 13 | 1 |
| CO | 5 | 1 |
// HISTORY_AQI_FEED
> [23:59] AQI_FEED_O3: 33 [STABLE]
> [00:59] AQI_FEED_O3: 35 [STABLE]
> [01:59] AQI_FEED_O3: 36 [STABLE]
> [02:59] AQI_FEED_O3: 35 [STABLE]
> [03:59] AQI_FEED_O3: 34 [STABLE]
🏕 REGISTRY_QUERY
PINE CREEK CAMPGROUND (MOCK)
TYPE: CAMPGROUND
OAK RIDGE PICNIC AREA (MOCK)
TYPE: PICNIC AREA
RIVER BEND CAMPGROUND (MOCK)
TYPE: CAMPGROUND
// WILDLIFE_SPECIES_REGISTRY
NO WILDLIFE SPECIES REGISTERED
Specifications
| PATH_LENGTH | 27 KM |
| ESTIMATED_DURATION | ~660 MIN |
| ELEVATION_GAIN | 1460 M |
| MAX_ELEVATION | 2694 M |
| ROUTE_TYPE | OUT-AND-BACK |
| DIFFICULTY_INDEX | STRENUOUS |
| ACCESSIBILITY_FLAGS |
Visitor Notes
An extremely strenuous climb. The final 400 feet require climbing up the metal cable route. Permits are required to hike past Sub Dome.
// SAFETY_ANALYSIS_METRICS
- > PATH_WELL_LIT: [ NO ]
- > RANGER_PRESENCE_INDEX: [ YES ]
- > SIGNAL_COVERAGE_OK: [ NO ]
[ AMENITIES_STATUS ]
[ REGULATIONS_REGISTRY ]
[ PARKING_FEE_DIAGNOSTICS ]
FREE_PARKING[ SEASONAL_SUITABILITY ]
BEST SEASONS: SUMMER, FALL
// GEOSPATIAL_VISUALIZATION
🌎
37.7456, -119.5332
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