GulfData does not offer a truly unlimited high‑speed data plan for French Guiana. While several plans carry “Unlimited” in their name, the structured data shows a 1GB per day allowance and a reduced speed of 512 kbps once the limit is reached, so they are not unlimited in the sense of unlimited high‑speed data.
Travelers looking for higher data‑allowances can choose from GulfData’s fixed‑data plans, such as the 20GB plan for 30 days priced at $19.00 USD or the 10GB plan for 30 days priced at $9.00 USD. These plans provide a set amount of high‑speed data that must be used within the validity period.