Kemeri is an hour or so from Riga, but The best way to visit by far should be to take a guided tour of the highlights. That is an amazing means of observing what Latvia provides far too.
We had 2 days in Riga, the https://deborahqnwl176372.scrappingwiki.com/876765/the_single_best_strategy_to_use_for_luxury_boat_tours_riga