Sindhudurg district occupies 5207 km² area  and bordered with Ratnagiri District on north, the state of Goa on south, the Arabian sea on the west and across the crest of the Western ghats or Sahyadri is Kolhapur district on the east. Sindhudurg is part of Konkan (coastal) region, a narrow coastal plain in western Maharashtra which lies between the Western Ghats and the Arabian Sea, consists 121km of costal line & 386.43 km² (7.52%) forest. Rivers such as Vaghotan, Gad, Karli, Devgad,want Tillari & Terekhol are main rivers flowing through Sindhudurg, These rivers originate as fresh water streams in Sahyadri and emptying in Arabian sea. In addition to rivers, number of natural as well as manmade wetlands are present across the entire area. 
Laterites plateau is considered sponges of Earth that absorb water as well as carbon dioxide, resulting into maintaining & increasing ground water table. Whereas, wetlands prevent flash floods. Thus, the combination of both have helped thriving rich biodiversity, in general & orchid flora, in specific. 
Sindhudurg has a semi-tropical climate and remains warm and humid throughout the year. It has four seasons: Rainy (June – September), Post monsoon season October to November, Winter (November-mid February) and Summer (Mid-February–May). Temperatures vary between a maximum of 37 to 38°C in summer & drops down up to 15°C in winter & 10°C in hilly areas of Amboli.
Monsoon winds bring heavy rains which accounts to average rainfall of 3200 mm. 
Sindhudurg is second district (in Maharashtra) after Gadchiroli, in terms of Forest cover (State forest report 2019). It represents various forest types, viz., tropical wet evergreen, tropical semi-evergreen and south Indian tropical moist deciduous type of forests (Satose et al, 2018). The largest forest area is in Kudal taluka of Sindhudurg district. Vegetation gradually changes from costal line Mangrove forests, along with vegetation on Laterite plateaus & grasslands at Vengurla, Malvan and Devgad to evergreen forests at Amboli.  Species such as Canthium anguistfolium, Diospyros candolleana, Garcinia talboti, Glochidion elliptcum, Holigarna grahamii, Ixora brachiata, Knema atenuata, Lagerstroemia microcarpa, Ligustrum perroteti, Myristca dactyloides, Tabernaemontana alternifolia represents semi evergreen forest of Amboli. Beilschmiedia dalzellii, Blachia denudata, Diospyros candolleana, Dimorphocalyx lawianus, Diospyros nigrescens, Drypetes venusta, Euonymus indicus, Garcinia indica, Garcinia talboti, Litsea stocksii, Meiogyne pannosa are the endemic species of Western Ghats found in the region.
Recently 29.53sq. km., area of Dodamarg forest range at Sidhudurg district is declared as ‘Tillari Conservation Reserve’ It has semi evergreen & tropical moist deciduous type of forest It connects Mhadei Sanctuary at Goa & Bhimgad at Karnataha 
Warm humid climate throughout year, plus plentiful regular rainfall favours luxurious growth of Epiphytic Lithophytic, &Terrestrial orchids in Sindhudurg district , 70 species of orchids are found in this small district therefore we can aptly describe Sindhudurg as ‘Hot Spot of Orchids’

Purpose of this site not just showcasing diversity of this orchids but also to make aware of threats & need for conservation of the most beautiful creation of mother nature
Over years during my field visits for studying orchids I have come to know that each year natural population of orchids is drastically reducing to dangerous level that I fear some orchids may get extinct if we will not stop destruction of its habitat
So I have discussed threats each orchid species is facing 
Usefulness of orchids is also discussed in brief.