Our very active group of two families (9 people total, 4 adults, 4 teenagers and one 10 year old) booked our air and accommodations on our own, so when it came to planning our activities, we didn't want to "wing-it" in Nicaragua, a country we had no familiarity with and at a busy time between Xmas and New Year's. When I checked on Trip Advisor for a tour company, Nica Adventures had so many good reviews I contacted them to arrange an 8 day itinerary of multiple activities in Granada and SJDS for our group. There was sometimes a lag time of a day or two getting responses, so I almost made the mistake of booking with another company, but when Katia came through with her final itinerary for us, it was immediately apparent that Nica Adventures knew what they were doing and were spot on with advice and recommendations for specific times/dates to experience the activities we wanted to do that were more well thought out and realistic given times, driving distances, etc.
Every driver, activity and tour guide were great. From being met at the airport by a friendly and courteous driver who took us to our hotel in Granada to our wonderful and knowledgeable guides Ramon (Granada to SJDS) and Luis (Ometepe Island). Both guides spoke excellent English (Luis actually speaks 4 languages!), were rich with knowledge and made the experience fun and interesting for our kids as well. On the days we only used Nica Adventures to book activities such as an ATV Tour or Zip lining all tours were paid for in advance, booked for specific times and a driver sent to take us there and bring us back to our rental home near SJDS. The divers always arrived on time, often arriving 1/2 hour early and would courteously wait until we were ready to go. The vans were comfortable, air conditioned and roomy.
Activities we had Nica Adventures help us with included: Kayaking Isletas on Lake Nicaragua, Granada City tour, Mombacho Volcano hike, ATV tour of SJDS beaches, La Flor Nature Reserve to view Sea Turtles, Tour of Ometepe Island, Zip lining at Da Flying Frog, Sailing excursion, and all our our transfer/rides to and from activities, hotels and airport. I have to add that even with all of these activities they were able to arrange our itinerary to give us plenty of down time for sleeping in (most days) and enjoying the beautiful beaches in Nicaragua.
I highly recommend using Nica Adventures, we had a fabulous experience. They made our trip stress-free, organized, safe and super fun.