You need an ETA for Suriname if you have a Spanish passport

Travellers need an E-Tourist Card to visit Suriname for Tourism. A Suriname E-Tourist Card is the fastest and easiest way of obtaining a visa for Suriname because travellers can submit their application and supporting documents online. Once the application is approved, travellers receive their eVisa confirmation electronically. A valid Tourist Card is required to board the flight. If the Tourist Card is expired or doesn’t match the traveller’s passport information, travellers will not be able to board their flight.