Colombo

Colombo is Sri Lanka's commercial capital — population 750,000 (metro 5.6M), the largest city + main entry point on the Indian Ocean island. Most travelers visit Colombo only as the gateway to Sri Lanka's iconic destinations (Sigiriya 5th-century rock fortress, Kandy Temple of the Tooth, Galle Dutch fort UNESCO, hill country tea plantations Nuwara Eliya, southern beaches Mirissa + Unawatuna for whales + surfing).

The city itself blends British colonial heritage (1815-1948), Dutch + Portuguese colonial remnants, modern luxury developments (Colombo Port City — Chinese-funded artificial island), and traditional Buddhist + Hindu + Muslim + Christian quarters. Highlights: Galle Face Green (5-acre seafront promenade with isso vade prawn fritters), Gangaramaya Temple (eclectic Buddhist temple + museum + lake), Colombo National Museum (Sinhalese heritage), Pettah Market (chaotic vibrant central market), Independence Memorial Hall, and Mount Lavinia (10km south, beach resort + colonial Mount Lavinia Hotel).

Real Sri Lanka adventure starts with day trips outside city. Most travelers spend 1-2 nights Colombo + 5-10 days touring rest of island.

Iconic Sri Lankan cuisine: Rice and curry (Sri Lankan staple — multiple curries served on rice plate, $5-12), Hoppers (rice flour pancakes, often with egg, $1-3 — breakfast staple), Kottu roti (chopped roti + vegetables + meat stir-fry, $4-8 — Pilawoos canonical), Pol sambol (coconut + chili relish, side condiment), Devilled chicken/prawns (sweet-spicy stir-fry, $8-15), Ceylon tea (national drink, $1-3 — try at heritage hotels), King coconut juice ($1-2 — orange-yellow variety unique to Sri Lanka).

Bottom line: Colombo is canonical Sri Lanka entry + Galle/Sigiriya gateway + Indian Ocean culinary intro. 1-2 days city + 5-10 days touring rest.