Nicaragua is home to a lot of different orchid species. You will find wild orchids in all parts of the country. You will find a small selection of species in areas with dry degraded land, You will find a lot more orchids in the wetter areas with healthy forests. The largest selection will however be found in the cloud forest. The most easily accessed cloud forest is found on Vulcano Mombacho just outside of Granada. You can find a lot of orchid species on Mombacho. You will find different species on different elevations. This makes Mombacho an ideal destination for people who want to see a lot of different species in a small area.
There are larger cloud forests in North-Eastern Nicaragua. These forests will allow you to see a wider selection of orchids. You can see countless species growing on trees and cliffsides right beside the road. You can see even more species by hiking in the countryside. North-Eastern Nicaragua is often considered to be unsafe and police presence is limited. The Nicaraguan government discourages travel in this area. This area is however large safe to travel in and the people are honest and friendly. I do however recommend travelling with someone that has visited the area before since it can be hard to navigate this area of the country and it can be hard to find help if you need it. There are large areas without cell phone reception.
I recommend that you spend a week in Nicaragua visiting different areas of the country to be able to see as many orchid species as possible. This will also give you the chance to see a lot of other attractions and wildlife. You get to see stunning vistas, active volcanoes and bustling waterfalls. You will also get that chance to see a lot of wildlife such as monkeys, sloths, toucans, macaws and other parrots.
Corn island can also be worth a visit if you want to see a lot of orchids. The moisture from the Caribbean makes the island home to a lot of different orchids. Most of them can be found in other parts of Nicaragua as well but the corn island populations sometimes show slight deviations from the mainland populations.