please, tell me which is the best place in San Diego, where i can find wonderfull beaches for a lovely holiday. If you know, please, give me some address for the hotels,too. Thanks in advance.

What time of year do you plan to come? The best part of San Diego depends on whether it's the summer/autumn (when you want to be near the beaches) or at a time of year when it will be too cold for water sports.

Dear Elena:
I'd stay at the Crystal Pier Motel in Pacific Beach. The "motel" in the name is a bit misleading: the place consists of comfortable cottages built on a pier above the beach.
You have easy access to a spectacular beach, restaurants are within walking distance, Mission Bay and other attractions are only a short drive away.
4500 Ocean Blvd.
San Diego,619.483.6983

For a pricier alternative, you could try the classic Hotel Del Coronado. It's on an island/peninsula west of San Diego and has a truly grand beach.
1500 Orange Avenue
Coronado, CA
619.435.6611
There are lots of other possibilities. San Diego is such a great city!

for the absolute best view of san diego, i go up the cabrillo nat'l monument on the tip of point loma and sit there for hours...ships in and out of the harbor and navy planes flying below you and on a clear day, mexico, channel islands, el cajon, etc

My dear friends, Im here again. Im going to have my holiday since 25/3 until 16/4 . The first city I'd like to visit is Los Angeles,then San Francisco, some Natural Parks and ,at the end, maybe in the last week, San Diego. What about you?I hope that someone, who have o good patience, can suggest me a tour. I'm going to rent a car in Los Angeles. Pardon for my bad English. Thanks.