My husband and I are traveling in mid-June with our 2 boys ages 7 years & 9 years old. We are going to be in Lucerne for 2 days between the Lauterbrunnen Valley and Salzburg. What is the best area to stay in Lucerne? Any ideas on places to stay either hotel or apartment rentals (budget is no more than $250/night but always like to spend less if possible) Any sites to see or other tips are greatly appreciated. Thank you very much.