Here are Bentota hotels that are good examples of tropical‑modernist architecture (many designed or remodelled by Geoffrey Bawa, the movement’s leading figure):

• Lunuganga (Geoffrey Bawa’s country estate; now a small country‑house hotel with garden tours and guest rooms). Why it fits: Bawa’s sustained experiment in “tropical modernism” — buildings, pavilions and walkways integrated with layered gardens and lake views. (geoffreybawa.com)

• Cinnamon Bentota Beach (originally the Bentota Beach Hotel, designed by Geoffrey Bawa in the late 1960s and restored in recent years). Why it fits: one of Bawa’s landmark resort designs — open pavilions, courtyards, local materials and artwork that blur inside/outside. (cntraveller.in)

• The Villa Bentota (formerly Mohotti Walauwa; remodelled/owned by Geoffrey Bawa in the 1970s and now a boutique hotel). Why it fits: a heritage bungalow reworked with Bawa’s tropical‑modern sensibility — verandas, courtyards and landscaping that connect to the beach. (kkcollection.com)

• Club Villa Bentota (small beachfront villa/hotel with strong Bawa connections and later sensitive additions). Why it fits: originally a Bawa design (and later interventions by architects who worked in his circle), it retains the verandas, ponds, shaded courtyards and laid‑back modernism typical of tropical modernism. (clubvillabentota.com)

If you’d like, I can:

• prioritize these by how “Bawa‑authentic” they are (best for architecture fans vs best for resort amenities); or
• give booking links, rough price ranges, or nearby Bawa sites to visit (Lunuganga, Ena de Silva House, brief tours).