According to forum posts, travelers to Nicaragua need a negative PCR test taken no longer than 72 hours before entry. Travelers must send their test results in PDF format to a specified email address at least 36 hours before their flight. Additionally, a completed online form submitted via an official website is required.

Some travelers mentioned that upon arrival, they must present the original document of their PCR test results. Moreover, it is crucial to have a physical address of their stay in Nicaragua to present at immigration. Failure to provide a specific address can result in denial of entry.

Travelers also need to fill out health and immigration forms, either online or provided by the airline during the flight. These forms often require proof of a complete vaccination scheme or a negative PCR test if unvaccinated.

Posts indicated that only certain airlines, such as Avianca, might be operating flights to Nicaragua with specific additional requirements. Travelers have experienced cancellations and changes in airline operations, suggesting checking with the airlines before travel.

Some travelers recommended a two-week itinerary that explores both nature and cultural sites in Nicaragua. Key destinations include León for its colonial charm and nearby volcanoes, Matagalpa for coffee farms and cloud forests, Granada for its historical architecture, Laguna de Apoyo for nature and birdwatching, San Juan del Sur for beaches and surfing, and the more remote Ometepe Island for hiking and natural beauty.

For those interested in wildlife and a more rustic experience, the Río San Juan area, particularly Los Guatuzos, was highly praised for its rich biodiversity and tranquil environment. Another suggested option includes visiting Little Corn Island for a more relaxed and remote beach experience, highlighting its position on migratory bird routes and its pristine natural surroundings.

According to forum posts, when planning an itinerary, it's beneficial to allocate sufficient time at each location to fully enjoy the diverse landscapes and activities each area offers. Some travelers have shared that splitting time between exploring the cultural sites in colonial cities and enjoying nature in less crowded, rural areas can provide a well-rounded experience of Nicaragua.

According to forum posts, public buses are available from Managua Airport to various destinations. Travelers can take buses from the Tipitapa-Huembes route that stop at Mercado Roberto Huembes, where they can connect to buses for Granada.

Some travelers have recommended using taxi services directly from the airport to nearby terminals such as UCA (Universidad Centroamericana). The maximum taxi fare mentioned is C$500, with a minimum of C$100 for one person. From UCA, frequent buses to Granada and Masaya are available for around C$80-100.

Forum posts indicate that hotels typically offer airport shuttle services, which might include shared minivans. Additionally, private transport services like that provided by Favio Castillo are mentioned as reliable options for direct transfers between Managua Airport and Granada.

Some travelers have shared experiences and recommendations for Masaya Volcano tours. Azul Hostal offers daily departures at 4 PM for a cost of $22 USD. Alternatively, Tripnic provides shared tours, although some users found its prices higher than expected.

Travelers have reported mixed experiences with tour operators. Leo Tours Comunitarios was criticized for a disappointing Masaya Volcano night tour costing $40 USD, which included arriving late, a lack of a guide, and insufficient time at the volcano.

For those considering other options, it was suggested that tours can also be organized through accommodations in Granada or by using public transport, although specific details were not provided in the posts.