No, Supera link does not provide an unlimited data eSIM for Saint Lucia. The network’s Saint Lucia plans are all fixed‑data offerings, each limited to 2 GB per day. For example, a 2 GB/day plan for 1 day is available for $8.34 USD, while a 2 GB/day plan for 3 days costs $24.87 USD, all with the same features such as eKYC, tethering, and reduced speed of 128 kbps. Choosing a fixed data plan can be more cost‑effective for travellers who are not extremely heavy data consumers, while an unlimited option is not offered.