Travelers holding a UK Refugee Travel Document (Blue Document) generally need a Schengen Visa to visit Amsterdam and the rest of the Netherlands. While the UK was a member of the EU, there were different reciprocal arrangements, but currently, a refugee travel document issued by a non-Schengen country (like the UK) does not grant visa-free entry. You must apply for a Short Stay "Type C" visa before your trip. Additionally, by late 2026, the European Travel Information and Authorisation System (ETIAS) will be implemented. However, ETIAS is for visa-exempt nationals; as a holder of a refugee document, you will likely remain under the full visa application regime unless specific bilateral changes occur. It is crucial to ensure your travel document has at least three to six months of validity remaining beyond your intended stay to satisfy Dutch border authorities and to provide proof of travel insurance and sufficient funds for your visit.