Here are recommended hotels and resorts across Sri Lanka that offer on-site or easily arranged water‑sports (snorkel/diving, surfing, kitesurfing, jet‑ski, kayaking, whale‑watching, etc.), organized by region with quick notes on what they provide and sources you can check:

South & Southwest coast (Bentota / Beruwala / Hikkaduwa / Weligama / Mirissa)

• Cinnamon Bentota Beach — river & sea water‑sports including water‑skiing, jet‑ski, wave runners and banana/disco‑donut rides. (cinnamonhotels.com)
• Jetwing Saman Villas (Bentota) — beachfront property that arranges snorkeling, diving, whale/dolphin trips and other water activities. (jetwinghotels.com)
• Club Bentota / Club Water Sports (Bentota) — large water‑sports centre for jetskis, surfboards, banana boats, etc. (clubbentota.com)
• Hikka Tranz by Cinnamon (Hikkaduwa) — diving, snorkeling and surfing excursions arranged from the hotel/nearby reef. (cinnamonhotels.com)
• Cape Weligama / Borderlands (Weligama) — surf lessons, scuba/snorkel trips and whale‑watching/ocean safaris via the resort’s sports centre. (resplendentceylon.com)
• Mirissa / Weligama operators — many hotels and operators run whale‑watching, snorkeling and diving trips (peak whale season noted below). (mirissawhalewatchingsrilanka.com)

South‑east / East coast (Tangalle, Trincomalee, Arugam Bay)

• Anantara Peace Haven Tangalle — surf lessons (partnered programs), SUP and whale‑watching excursions from the south coast. (anantara.com)
• Trinco Blu by Cinnamon (Trincomalee / Nilaveli) — scuba diving and a range of ocean activities off the east coast. (cinnamonhotels.com)
• Arugam Bay surf camps & hotels (east coast) — Arugam Bay is a top surf destination with numerous surf camps/hotels offering lessons, board hire and surf packages. (rupassurf.com)

Kalpitiya (north‑west) — kitesurfing hub

• Kitesurfing Lanka and several kite‑resorts/schools in Kalpitiya — full kitesurf programs, lessons and gear rental; Kalpitiya is the island’s main kitesurfing area with two wind seasons (summer May–Oct and a lighter season Dec–Mar). (kitesurfinglanka.com)

Negombo / Colombo gateway

• Jetwing Lagoon / Jetwing Thalahena / local Negombo hotels — access to Negombo Lagoon and professional water‑sports centres (jet‑ski, windsurf, water‑ski, lagoon tours). (jetwinghotels.com)

Quick seasonal notes (important for planning)

• Whale watching (south coast, Mirissa/Weligama/Cape Weligama): peak season is roughly November–April (calmest seas and best chance for blue/sperm whales). Many operators pause or reduce trips during the southwest monsoon (May–Oct). (mirissawhalewatchingsrilanka.com)
• Kitesurfing (Kalpitiya): main windy season mid‑May to end‑October (stronger winds), with a secondary season mid‑Dec to mid‑Mar. (visitkalpitiya.com)
• Surfing on the south coast (Weligama/Hikkaduwa/Midigama): best breaks are generally Apr–Sep for many southern breaks, though conditions vary by beach — check local surf centres. (elpais.com)

How to proceed / tips

• If