No. None of The Sims titles released on Nintendo DS (The Sims 2, The Sims 2: Pets, The Sims 3) include scuba diving or underwater gameplay.
| Game | Pack/Requirement | Details |
|---|---|---|
| The Sims 4 | Island Living Expansion | Free diving, snorkeling, buoy diving, mermaid lifecycle, conservation career. Best implementation. |
| The Sims 3 | Island Paradise Expansion | Scuba diving skill, underwater lots, caves, treasure, mermaids. Open world ocean. |
| The Sims 2 | Bon Voyage Expansion | Vacation only (Twikkii Island). Snorkeling/scuba as rabbit-hole activities (not direct control). |
| The Sims Mobile | Island Living Event/Update | Limited diving tasks/events for rewards. |
If you want portable scuba Sims, The Sims 3 on a laptop/Steam Deck with Island Paradise is the closest experience. The Sims 4 Island Living on PC/Console is the modern standard.