We are visiting in a few days and would like to rent kayaks to paddle around Lake Union. However, we are not experienced kayakers and would like a rental place where the staff is very helpful and attentive! I wonder if a guided tour would be best for us too (as beginners). I am aware of Agua Verde, Moss Bay, and Northwest Outdoor Center. Are any of these, or other places, one that you could recommend given our beginners status and desire for helpful staff?