Guayacán Rainforest Reserve

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Guayacán Rainforest Reserve The Guayacan Rainforest Reserve is a small family owned and operated ecolodge and private nature preserve.

The Guayacan Rainforest Reserve is one of the best places in Costa Rica to comfortably experience an amazing tropical rainforest's biodiversity. The Guayacán Rainforest Reserve is a privately owned and operated nature preserve that is nestled in the Caribbean foothills of northern Talamanca, near the small town of Guayacán de Siquirres. The Guayacán Rainforest Reserve is one of the most exclusive and biologically diverse private nature preserves in Costa Rica. The reserve is located in a large section of contiguous and protected rainforest in the upper catchment basin of the Siquirres River valley. The reserve has a total area of 49 hectares (121 acres), and an altitudinal range between 440–610 meters above sea level. The Guayacán Rainforest Reserve is well-known internationally for its astonishing diversity of amphibians, with 56 species having been recorded within its boundaries, but it is equally impressive for its diversity of many other groups of flora and fauna such as birds, reptiles, insects and other invertebrates, orchids, aroids, bromeliads, and palms. The Guayacán Rainforest Reserve has more than 3 kilometers of well-maintained trails that our guests can either explore on their own, or during one of the personalized private tours that we offer. For more information about visiting the Guayacán Rainforest Reserve please contact us through our website www.cramphibian.com

07/10/2026

A large female elephant beetle (Megasoma elephas) that was observed tonight in the Guayacan Rainforest Reserve, this is one of the largest beetles in Costa Rica and Central America.

Another great example of mimicry observed here within the Guayacan Rainforest Reserve.  This walking stick (Prisopus aff...
02/10/2026

Another great example of mimicry observed here within the Guayacan Rainforest Reserve.  This walking stick (Prisopus aff. horridus) blends very well with its arboreal habitat.

Found this extremely cute little guy while moving some furniture in the guesthouse of the Guayacan Rainforest Reserve to...
02/10/2026

Found this extremely cute little guy while moving some furniture in the guesthouse of the Guayacan Rainforest Reserve today.  This is a little golden-headed microgecko (Sphaerodactylus homolepis).  This species is one of the smallest reptiles in not only Costa Rica, but Central America.  Sphaerodactylus homolepis is found along a relatively small geographic range in the Caribbean lowlands and foothills (from about sea level to around 750 meters above sea level) in extreme southeastern Nicaragua, Costa Rica, and western Panama.  This species demonstrates sexual dichromatism (different colorations between males and females), and this little guy is a male with his beautiful golden reticulated head and golden tail.

Sphaerodactylus homolepis, like most geckos, has extremely delicate skin and should not be handled, in the one image of him on my hand, I simply put my hand out openly in front of him and let him jump on to it from the wall, similar with the pencil, these images were just to show the small size of this lizard.  Afterwards he simply crawl off my hand and back onto the wall in the kitchen of the guesthouse where he was found. 

Two other species of "microgecko" are also commonly seen within the Guayacan Rainforest Reserve, Gonatodes albogularis and Lepidoblepharis xanthostigma. All three species (G. albogularis, L. xanthostigma, and S. homolepis) belong to the family Sphaerodactylidae. Sphearodactylus homolepis and G. albogularis are both frequently observed on and in the buildings at the Guayacan Rainforest Reserve.

While exploring the Guayacan Rainforest Reserve it is common to observe a variety of species with incredible mimicry, su...
18/09/2026

While exploring the Guayacan Rainforest Reserve it is common to observe a variety of species with incredible mimicry, such as this Skeletonized Leafwing (Zaretis itys) that we saw during a night hike this week. This butterfly looks like a dead leaf hanging from the vegetation.

Heliconia calatheiphylla is one of the rarest Heliconia species in Central America, known only to exist within a very re...
13/09/2026

Heliconia calatheiphylla is one of the rarest Heliconia species in Central America, known only to exist within a very restricted range along the central Caribbean foothills of Costa Rica. Heliconia calatheiphylla can be found within the Guayacan Rainforest Reserve, typically growing in riparian forest habitats.

We would like to thank Prof. Hector Z. and the 2026 class of herpetology from the National University of Costa Rica (UNA...
11/09/2026

We would like to thank Prof. Hector Z. and the 2026 class of herpetology from the National University of Costa Rica (UNA) for coming to stay at the Guayacan Rainforest Reserve. As always, it is a great pleasure to host them and meet some of the future generation of Costa Rican biologists!

A drone image of a flowering Tabebuia guayacan tree in valley of the Guayacan Rainforest Reserve.
10/09/2026

A drone image of a flowering Tabebuia guayacan tree in valley of the Guayacan Rainforest Reserve.

The last couple months have been extremely rainy, and especially very heavily overcast most if the time, the sun has onl...
08/09/2026

The last couple months have been extremely rainy, and especially very heavily overcast most if the time, the sun has only poked out for brief periods during this period. As can be seen in the two attached images, according to the digital rain gauge here at the Guayacan Rainforest Reserve, during the month of July we received 1248 mm or 49.1 inches of rainfall. During the month of August we received 1016 mm or 40.0 inches of rainfall.

06/09/2026

The Guayacan Rainforest Reserve has HUGE diversity of arachnids, ranging from tiny spiders that are barely visible to the naked eye to large species such as tarantulas like the one in this video that was taken last night during a hike in the reserve. For the careful observer, literally every step along our 3 kilometers of well-maintained and easy walking trails reveals yet another species to observe and admire.

The unforgettable face and menacing large sharp mandibles of a Pitbull Katydid (Lirometopum coronatum).  These predatory...
05/09/2026

The unforgettable face and menacing large sharp mandibles of a Pitbull Katydid (Lirometopum coronatum). These predatory inhabitants of the Guayacan Rainforest Reserve can at times be observed feeding on other insects, even being able to cut through the tough exoskeleton of species such as beetles with their powerful and sharp black mandibles.

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