Thank you John,
As navisyachts.com is an old website, google have over 2000 pages indexed from the previous website. But with the new one we did a new sitemap and we re-submitted to google the old and new pages that started to appear in the site, the old sitemaps where deleted. But when I check in Google webmaster tools how many of this webpages are indexed from the sitemap it returns a 0, I thought it might take a few days to start showing pages indexed but nothing is happening and I see drops in the impressions and in the website traffic so I am starting to get worry.
There are still some 404 appearing but we have them under control.
Any idea what can be wrong or how can I make google start indexing the pages?
Thanks.