diff --git a/README.md b/README.md
index 65cd08b..76b86df 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,7 @@ other features
   - `solar` gives an idea of the x-ray flux
   - `hfcond` returns a table of HF solar conditions
   - `whereami` returns the address of location of sender if known
+  - `tide` returns the local tides (NOAA data source)
 
  ### Configurations
  Currently config modifications is edit to code. Be sure to uncomment the appropriate interface for your method (serial/BLE/TCP). Only one at a time is supported to a single node at a time.