Major city · Nicaragua
El CastilloEl Castillo de la Inmaculada Concepción
Go for 2 nights if you want the river fort and a jungle day; skip if you need ATMs, nightlife or fast transport — boats only, cash only.
El Castillo is a one-street river village on the San Juan, built around a 1670s Spanish fort that once stopped pirates and Horatio Nelson. There are no cars, no ATM and no road in: you arrive by boat from San Carlos, walk everywhere, and use the village as a base for Indio Maíz rainforest and river rapids. Two nights covers the fort, a jungle or kayak day and the boat back.
More ways in
Local time, weather, currency, airports
- Weather
- see forecast
- Currency
- NIO
- Best months
- Dec–Apr (dry season, easier river travel)
- avoid May–Nov (heavy rain, boat delays); Feb–Apr for shrimp closures
- Airports
- MGA · LIR
- Nights
- 2
Rules in force · 6Guatemala, El Salvador, Honduras and Nicaragua (CA-4) giv…
- Central America ↗Guatemala, El Salvador, Honduras and Nicaragua (CA-4) give one shared entry allowance, usually 90 days in total; leaving for Belize, Costa Rica or Mexico and coming back does not always reset it — check with immigration before a long stay.
- Central America ↗Cross land borders in daylight and early in the day; many posts close or empty of transport by late afternoon, and the approaches are where robberies happen.
- Central America ↗Several borders charge entry, exit or municipal fees in US dollars (Belize exit, Nicaragua entry and exit, Honduras entry); carry small, clean US notes and ask for a receipt.
- Nicaragua ↗Check entry rules for your passport with a Nicaraguan embassy and your airline before booking; some visitors must register in advance, and entry can be refused without explanation.
- Nicaragua ↗Avoid political gatherings and do not photograph police, the military or protests; foreign nationals have been detained or expelled.
- Nicaragua ↗Do not bring drones or professional camera equipment without prior permission; they can be confiscated at customs.
What is in this basic guide9 covered · 4 not yet ▾
In this guide
Not in this guide yet
- Walking areas with bag rules
- Day plans checked against opening hours
- Airport-to-bed timings and the last safe connection
- Field-checked times and prices
Official sites
Emergency numbers for El Castillo118 ▾
Tap a number to call from your phone. These are the numbers listed in this guide; a row marked check has not been verified.
EssentialsQuick answers and what things cost
Essentials
Quick answers and what things cost
Quick answers
The questions people ask first about El Castillo, one line each. Tap a card for the full answer.
- Cash or card?Currency is the Nicaraguan córdoba (NIO, C$); US dollars are widely accepted in tourist areas.Nicaragua-wide
- SIM or eSIMClaro and Tigo sell SIMs at the airport and in towns; bring your passport.Nicaragua-wide
- Tap waterNot safe from the tap outside some Managua hotels; buy bottled or use refill stations.Nicaragua-wide
- TippingRestaurants: 10% often added; otherwise leave 10%.Nicaragua-wide
- Plugs & powerSockets A/B. US/Canada (A/B): fits · UK/Ireland (G): adapter · Australia/NZ (I): adapter. 120 V: UK and AU 230 V-only devices need a converter; most chargers are dual-voltage.Nicaragua-wide
- SafetyThe village is small and calm, and violent crime is rare; the real risks are river travel in bad weather…
Show all 12 answers
- RestroomsWestern toilets; do not flush paper in many older buildings.Nicaragua-wide
- Emergency numbers118 police · 115 fire · 128 Red Cross ambulance (not 911, 999 or 000)
- Sundays & holidayscheckSemana Santa Thursday–Friday and Christmas shut much of the country; museums close Mondays (check).Nicaragua-wide
- Your embassyFind your embassy's 24-hour line before you fly.
- AirportMGA Managua Augusto C.
- Getting aroundOn foot only — the village has no cars and no rental bikes.
Cost cheat-sheet
Typical prices for the everyday things, as ranges. Your currency is shown next to the local price.
- BeerBeer or natural fruit drinkcheckUS$1–3
- Museum or sight ticketFortress admissionUS$2, camera permit US$1
- Budget bedGuesthouse double, a night, per roomNIO 20
- Mid-range bedGuesthouse double, a night, per roomNIO 35
- High-end bedGuesthouse double, a night, per roomNIO 60
A day, not counting the bed: Budget NIO 25 · Mid NIO 45 · High NIO 80
Local prices, with USD next to them (rates 2026-09 (approximate); change it in the header). Ranges are desk estimates: check locally. Every price and the budget calculator →
DecideWhat it is known for, and when the weather works
Decide
What it is known for, and when the weather works
At a glance
What the city is known for, how you fly in, and where to find the phrases.
- Airports
- MGA Managua Augusto C. Sandino (Bus or shuttle to San Carlos, then boat; a long travel day, plan an overnight in San Carlos) · LIR Liberia, Costa Rica (Some travellers cross from the Costa Rican side; check current border rules before booking)
Best months at a glance
From the guide's best and avoid lists
Jan
Best
30°C (86°F)86°F (30°C)
Feb
Care
31°C (88°F)88°F (31°C)
Mar
Care
32°C (90°F)90°F (32°C)
Apr
Care
33°C (91°F)91°F (33°C)
May
Avoid
32°C (90°F)90°F (32°C)
Jun
Avoid
31°C (88°F)88°F (31°C)
Jul
Avoid
30°C (86°F)86°F (30°C)
Aug
Avoid
31°C (88°F)88°F (31°C)
Sep
Avoid
31°C (88°F)88°F (31°C)
Oct
Avoid
31°C (88°F)88°F (31°C)
Nov
Avoid
30°C (86°F)86°F (30°C)
Dec
Best
30°C (86°F)86°F (30°C)
Best: Dec–Jan. Mixed: Feb–Apr. Avoid: May–Nov. Month by month →
Warmest Apr (33°C (91°F)91°F (33°C)), coolest Jan (22°C (72°F)72°F (22°C) low), wettest Jul (22 rain days), driest Mar (7). Averages, not a forecast.
Weather and climate
El Castillo: next 7 days
Loading forecast…
Forecast: Open-Meteo (CC BY 4.0), model data for this point.
Air quality
Loading…
Model estimate (CAMS via Open-Meteo), not a street-level station; readings near busy roads run higher.
Jan
30°C (86°F)86°F (30°C)
22°C (72°F)72°F (22°C)
12 rd
Feb
31°C (88°F)88°F (31°C)
22°C (72°F)72°F (22°C)
9 rd
Mar
32°C (90°F)90°F (32°C)
23°C (73°F)73°F (23°C)
7 rd
Apr
33°C (91°F)91°F (33°C)
24°C (75°F)75°F (24°C)
8 rd
May
32°C (90°F)90°F (32°C)
24°C (75°F)75°F (24°C)
15 rd
Jun
31°C (88°F)88°F (31°C)
24°C (75°F)75°F (24°C)
20 rd
Jul
30°C (86°F)86°F (30°C)
24°C (75°F)75°F (24°C)
22 rd
Aug
31°C (88°F)88°F (31°C)
23°C (73°F)73°F (23°C)
21 rd
Sep
31°C (88°F)88°F (31°C)
23°C (73°F)73°F (23°C)
20 rd
Oct
31°C (88°F)88°F (31°C)
23°C (73°F)73°F (23°C)
20 rd
Nov
30°C (86°F)86°F (30°C)
23°C (73°F)73°F (23°C)
17 rd
Dec
30°C (86°F)86°F (30°C)
22°C (72°F)72°F (22°C)
14 rd
High / low, both scales · rd = rain days
Arrive & moveAirports are listed under At a glance; this is how to move once you are in
Arrive & move
Airports are listed under At a glance; this is how to move once you are in
Getting around
On foot only — the village has no cars and no rental bikes. Kayaks can be rented for river trips, with or without a guide. Boats along the San Juan are the only way in and out.
Nearest full guides
Straight-line distance, not travel time
See & doDay-trips, door to door
See & do
Day-trips, door to door
Day-trips
Indio Maíz Biological Reserve
goDoor to door: Half to full day
Guided boat and walking trip arranged in the village
Rubber boots provided; monkeys, frogs and birds are common. Confirm access and fire damage with your guide first.
River rapids (Raudal del Castillo, Raudal del Toro)
goDoor to door: 2–4 h
Kayak or boat from the village dock
The rapids are why the fort was built here; go with a guide in the dry season.
Boca de Sábalo
goDoor to door: Under 1 h
Boat downriver, stops on request
Small river village with lodges; a short stop, not a full day.
San Juan del Norte
overnightDoor to door: A full day or more
Weekly boat downriver, 6–12 h depending on service
Only worth it if you are continuing to the Caribbean coast; check the weekly schedule.
Eat & sleepWhich area to sleep in
Eat & sleep
Which area to sleep in
Where to sleep
Areas, not hotels: pick the one that fits your arrival time and plans.
Village centre near the fort
Walk to the fortress, the dock and most eateries; guesthouses and small hotels, US$20–60.
Riverside lodges (Boca de Sábalo and downriver)
Own pier, meals often included, US$75+; tell the boat captain your stop in advance.
PracticalWhat a day costs, what to watch out for, and the pocket card
Practical
What a day costs, what to watch out for, and the pocket card
Cost per day
- Budget
- US$25–40 excl. bed
- Mid
- US$40–70 excl. bed
- High
- US$70+ excl. bed
Trip budget
| Guesthouse double1 × 2 nights × NIO 35 | NIO 70 |
| Food, local transport, entries2 × 2 days × NIO 45 | NIO 180 |
| Boat San Carlos → El Castillo, one way2 × NIO 4 · check | NIO 8 |
| Fortress admission2 × NIO 2 · camera permit about US$1 extra | NIO 4 |
| Guided Indio Maíz day trip2 × NIO 40 · check; group size and duration vary | NIO 80 |
| Buffer 10%Price creep, a taxi you did not plan, one splurge | NIO 34 |
| Trip total≈ NIO 94 per person per day, bed included | NIO 376 |
2026 estimate in US dollars, the currency most lodges quote; your choices stay in this browser.
Prices of common things
| Boat San Carlos → El Castillocheck; pay at the muelle municipal | C$75 (≈ US$55) (about US$2–4) |
| Fortress admission | US$2, camera permit US$1 |
| Guesthouse double | US$20–60 |
| River shrimp platecheck; not available year-round, protected roughly Feb–Apr | US$5–10 |
| Beer or natural fruit drinkcheck | US$1–3 |
2026 estimate; check locally.
Watch out
Safety
- No ATM in town: bring enough córdobas or US dollars in cash for your whole stay.
- Boat seats sell out in high season: book the day before at the San Carlos muelle municipal.
- Indio Maíz trips need a local guide and rubber boots; confirm the reserve is open and safe before paying.
- Rainy-season river levels and schedules change fast; keep a buffer day before an international flight.
Emergency numbers
- Police
- 118
- Fire
- 115
- Red Cross ambulance
- 128
Pocket card
Fill in, then print or save as PDF
Stays in this browser only; nothing is sent anywhere.
El CastilloEl Castillo de la Inmaculada Concepción
Pocket card · Voykit
My bed tonight
—
—
—
Lléveme a esta dirección, por favorTake me to this address, please
Emergency
- Police118
- Fire115
- Red Cross ambulance128
Embassy
No embassies in El Castillo; most are in Managua. The nearest consular help is in San Carlos or Managua — check before travelling.
My embassy: —
Fare anchors (2026 estimate)
- San Carlos → El Castillo boat: about C$75 (≈ US$55), 2–4 h depending on the boat (check)
- Fortress admission: US$2, plus US$1 camera permit
- Kayak rental: ask locally; rates vary by hours and guide (check)
Say or show
- ¿De dónde sale el barco? — Where does the boat leave from? (de DON-de SA-le el BAR-co)
- ¿Cuánto cuesta el boleto? — How much is the ticket? (KWAN-to KWES-ta el bo-LE-to)
- Quiero ir a El Castillo — I want to go to El Castillo (KYE-ro ir a el cas-TI-yo)
- ¿Tiene una habitación para esta noche? — Do you have a room for tonight? (TYE-ne U-na a-bi-ta-SYON PA-ra ES-ta NO-che)
- ¿Hay un cajero cerca? — Is there an ATM nearby? (ai un ka-HE-ro SER-ka)
- La cuenta, por favor — The bill, please (la KWEN-ta por fa-VOR)
Cash only: no ATM in town. Bring small córdoba notes and US dollars.
Deep diveWhat this guide covers so far, and its sources
Deep dive
What this guide covers so far, and its sources
Not a trip line yet
This is a basic guide: no airport-to-bed contract, walking clusters or day plans are published for El Castillo. Airport, fare and schedule details are unverified; check the operators before you fly.
What we know, and what is coming
On this page
- Best months: Dec–Apr (dry season, easier river travel) · avoid May–Nov (heavy rain, boat delays); Feb–Apr for shrimp closures · month by month →
- 2 airports and 2 areas to sleep in
- Weather: a 7-day forecast and monthly averages
- Cost per day in 3 bands
- 4 day-trips, door to door
- 4 things to watch out for, with emergency numbers
Coming as the guide grows
- Boat timetable and last-departure fixtures for the San Carlos–El Castillo run, with a high-season booking rung.
- Walking map of the village with the fort, dock, eateries and guesthouses pinned.
- Indio Maíz operator list with guide licensing, boot hire and reserve-status checks.
- Cash-only arrival fixture: nearest ATM in San Carlos, daily budget in córdobas.