# Costa Ballenas, Las Grutas

Roost Score **8.66/10**, from a guest rating of 9.4
across 88 reviews. 21 September 2026.

| Component | Value |
|---|---|
| Guest rating as published | 9.4 |
| Reviews behind it | 88 |
| Country mean | 9.057 |
| After evidence weighting | 9.276 |
| Country re-basing weight | 0.3 |
| **Roost Score** | **8.66** |

---
Source: HotelRoost — https://hotelroost.com/hotels/argentina/las-grutas/costa-ballenas
Retrieved: 21 September 2026
Scoring method: /methodology