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Texas | Hill Country
San Marcos River
City Park to San Marcos River Retreat
Check current paddling conditions for this San Marcos River route, including water level, recent gauge trend, weather, and route details.
Route location
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Need to know
Why this call
Conditions
Gauge history and hourly forecast
The top card is the quick read. This lower section keeps the longer gauge trend, gauge context, and hourly forecast together.
Gauge detail
Gauge history & hourly forecastDetailed view
Gauge
Recent trend
Checking preferred range.
Checking trend.
Gauge source
--Checking timestampMN DNR provides the current paddling level here, but not chart-ready recent samples.
Weather
Hourly forecast
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Next 8 hours
Short-route forecast
Checking the next several hours.
Route overview
Quick facts and what's next
Distance, difficulty, shuttle basics, and the near-term outlook before you commit to the drive.
Quick facts
Plan ahead
Upcoming outlook
These are early planning reads. Re-check live conditions before you commit to the drive.
Waiting on forecast.
Waiting on forecast.
Plan
Plan your trip
Launch points, shuttle details, distance, and access notes.
Route logistics
Access and shuttle
Launch at City Park and finish at San Marcos River Retreat for the upper San Marcos run through Rio Vista, Cape's Dam, Cummings Dam, and Westerfield Crossing. Use USGS 08170500 with TRPA's 60 cfs floor, 150 cfs target, and 500 cfs upper caution, then make a same-day call on portages, crowds, and access permissions.
Plan a shorter segmentOptional
Access planner
Pick a shorter segment
This changes launch and take-out logistics, not today's river score.
Peltier Lake to Long Lake is the full route. Shorter access pairs are useful when wind, time, or group energy changes the plan.
Prepare this trip
Take the plan with you
Download the canonical route, add a calendar hold, or send a simple float plan to your group.
Put-in
City ParkCity of San Marcos confirms City Park river access for kayaks and canoes, but parking, seasonal crowd controls, and nearby Rio Vista entry rules can change during high-use periods.
Take-out
San Marcos River RetreatSan Marcos River Retreat is private property even though it participates as a TPWD River Access and Conservation Area site. Confirm day-use availability and rules before relying on it as the take-out.
Plan this segment
Access caveats and watch for
Access caveats
- City of San Marcos confirms City Park river access for kayaks and canoes, but parking, seasonal crowd controls, and nearby Rio Vista entry rules can change during high-use periods.
- San Marcos River Retreat is private property even though it participates as a TPWD River Access and Conservation Area site. Confirm day-use availability and rules before relying on it as the take-out.
- Westerfield Crossing is a route-supported access/portage anchor, but it should not be treated as unrestricted parking or private-bank permission beyond the actual public crossing access.
- The TRPA Google-map coordinates are access anchors, not promises that the exact wetted-edge launch or landing is at the coordinate. Follow signs, ramps, current bank conditions, and staff guidance on arrival.
- Below the city parks, private banks are common. Stop only at public or permission-backed accesses and direct hazard portages.
Watch for
- Rio Vista Falls early in the route; most open-canoe and mixed-skill groups should portage uncertain drops rather than treating the playspot as mandatory.
- Cape's Dam / Thompson's Island route choices, where TRPA notes portage and channel decisions that can be confusing for novice groups.
- Cummings Dam around mile five; TRPA calls it very dangerous, warns not to shoot or surf it casually, and describes portage handling rather than a normal runnable feature.
- Flows below 100 cfs, when TRPA says conditions are low, and flows near or above 500 cfs, when upstream paddling, dam hydraulics, and portage margins become less forgiving.
- Blanco River runoff, flash-flood response, crowds, strainers, low bridges, slick dam tops, wrapped boats below drops, and limited legal exits away from the named access points.
Route gallery
See this route on the water
Photos help show what the access looks like and what the route actually feels like on the water.
Score & sources
Why this score
See the gauge, weather, and source notes behind today's call.
Why this scoreToday's evidence strength is checking
Evidence strength mostly comes down to three things: how direct the active gauge is, how clear the range is, and how fresh the data is.
- Checking evidence-strength notes.
- Checking evidence cautions.
Data behind the scoreGauge, thresholds, and timing
These are the live readings and threshold notes behind today's score.
| Gauge site | San Marcos Rv at San Marcos, TX |
| Discharge | Checking |
| Gauge height | Checking |
| 24h trend | Checking |
| 24h change | Checking |
| Current band | Checking |
| Rain last 24h | Checking |
| Rain last 72h | Checking |
| Air temp | Checking |
| Water temp | Checking |
| Wind | Checking |
| Gusts | Checking |
| Rain timing | Checking |
| Target band | 100 cfs to 150 cfs |
| Low threshold | 60 cfs |
| High threshold | 500 cfs |
| Evidence strength behind the range | Local route guidance |
| Gauge observed | Checking |
| Paddle Today updated | Checking |
| Main source behind this score | TRPA San Marcos City Park to SMRR flow guidance |
| Gauge source | Checking |
| Weather source | Checking |
| Rainfall source | Checking |
NotesWhat to know before you go
These notes cover the access details, route quirks, and source caveats most likely to matter once you get there.
- Route shape and thresholdCity Park to SMRR, about 6 mi; 60 / 150 / 500 cfs
TRPA publishes the City Park to Westerfield Crossing / SMRR Scout Camp route with a six-mile distance, 60 cfs minimum, below-100 cfs low cue, 150 cfs ideal, and 500 cfs maximum guidance tied to USGS San Marcos.
- Direct live gaugeUSGS 08170500 at 97.7 cfs / 3.94 ft
USGS Water Services returned same-day San Marcos River at San Marcos discharge and stage at 2026-08-10 10:45 CDT during this run.
- Public put-inCity Park river access
The City of San Marcos says City Park provides San Marcos River access and allows visitors to bring kayaks, canoes, paddleboards, and tubes with no reservation required.
- Take-out accessSan Marcos River Retreat TPWD RACA day-use access
San Marcos River Retreat describes itself as a private campground and TPWD River Access and Conservation Area site that allows individuals to launch canoes or kayaks from its banks for a day-use fee, subject to site rules.
- Dam and portage safetyRio Vista, Cape's Dam, Cummings Dam, Westerfield Crossing
TRPA's route notes give portage handling at Rio Vista, Cape's Dam, Cummings Dam, and Westerfield Crossing, including a hard warning that Cummings Dam is very dangerous and should not be surfed or treated casually.
- CampingEndpoint campground only by reservation or group/day-use rules
San Marcos River Retreat is a private campground and day-use RACA access site; route camping is not inferred from private banks or city parks, and the normal paddle should be treated as a day route unless separate campground arrangements are made.
- Image decisionNo route-gallery image selected
Bounded TRPA, City of San Marcos, San Marcos River Retreat, Commons, USGS, and same-route web review found route-context photos but no clearly rights-clean exact City-Park-to-SMRR paddling asset selected for local reuse.
Verify it yourselfCheck the source links
Use these links to double-check the gauge, route details, and access notes before you head out.
Paddler reports
Recent notes from paddlers
A few quick notes from people who were on this route recently.
Reports
Paddler reports
See recent photos and notes from people on the route.
Share your trip
Keep exploring
More routes to check next
Compare another stretch on this river, or jump to nearby options before you pick a plan.
Quick answers
San Marcos River paddling FAQ
What water level is good for paddling San Marcos River?
Paddle Today watches San Marcos Rv at San Marcos, TX and treats 100 cfs to 150 cfs as the target band for this route, with weather and recent trend included in the final score.
Where does this San Marcos River route start and end?
This route starts at City Park and ends at San Marcos River Retreat, about About 6.0 mi on the water.
Is this San Marcos River route good for beginners?
This is listed as a hard route. Treat the live score as a planning aid, then confirm conditions, hazards, access, and group skill before launching.
Flag a change
See something outdated?
Access, hazards, wood, and shuttle details change. Send a quick correction if something looks off.