Kenyan Embassy has not been established in Uk - British Indian Ocean Territory yet.
You should apply for Kenyan eTA online for saving time. By that way, you will get the Kenyan eTA approval letter before leaving Uk - British Indian Ocean Territory for Kenya.
Please visit our eTA processing to know how to apply for Kenyan eTA step by step safer and faster.
If you have any further questions, please feel free to contact us. Thank you!