Hotel Information

Official Housing Partner

Connections Housing - official housing partner

Hotel reservations will be able to be made in early 2021 - stay tuned!

Travel Information

Visa & Invitation Letter Information

If you are traveling to HYDROVISION International from outside the United States., we suggest you build in ample time before your planned travel date to obtain necessary documentation. For information on requirements for entering the United States, please visit:

Please note that residents of certain countries will need a non-immigrant B-1 visa to be authorized for a temporary business visit. Residents of countries for which the visa requirement is waived will need to obtain a travel authorization via the Electronic System for Travel Authorization. For more information, please visit:

Visa application tips
• If you are planning to attend HYDROVISION International, apply for your visa as soon as possible.
• Attaching evidence of any previous visits to HYDROVISION International may help shorten the application processing time.
• Attaching evidence of your intended trip home can shorten the application processing.

Invitation letter
To receive your invitation letter you must register and pay the registration fee in full for HYDROVISION International. Letters of invitation can be requested by logging back into the registration system using the information from when you registered. once logged in, you can choose "request a letter of invitation" from your dashboard.